Firming Peptide Face Serum for Mature Skin
865.00 kr
Ingredients Transparency
Technical Blueprint: Hexapeptide-11
The Molecule
Hexapeptide-11 is a high-performance vegan signal peptide derived from yeast fermentation, a cornerstone of peptide skincare. This bioengineered compound consists of six amino acid residues specifically sequenced to penetrate the dermal layer and communicate directly with fibroblast cells, making it the ideal collagen-boosting serum active for face firming and skin longevity.
The Function
It acts as a molecular messenger, signaling cells to reinforce the skin's structural lattice, a regenerative peptide protocol for collagen renewal. By activating the TGF-β signaling pathway, Hexapeptide-11 instructs fibroblast cells to increase production of Type I and Type III collagen, the two primary proteins responsible for skin density, firmness, and tensile strength. This non-invasive lifting mechanism targets sagging at the source.
The Result
Restores the 'snap-back' elasticity and firmness required for a defined profile, a true bio-science face lift in a bottle. Over a 12-week regenerative peptide protocol, users experience measurable improvements in skin density and longevity, with visible lift along the jawline and neck, the areas most susceptible to structural degradation from aging, weight loss, and environmental exposure.
The Clinical Deep Dive.
Transparent data from our peptide research. Three metrics that define the SIRELA standard: measured, verified, and published.
Fibroblast Activity
Measured increase in fibroblast-driven collagen synthesis after 12 weeks of consistent Hexapeptide-11 application. Fibroblasts are the cells responsible for producing the structural proteins that keep skin firm and elastic.
V-Zone Density
Progressive structural densification across the jawline and lower-face V-zone. Peak results at week 12 as cumulative collagen deposition reaches measurable threshold for visible lift.
Molecular Purity
Every SIRELA formulation meets our Cleanical standard: 100% vegan, zero fillers, no synthetic fragrances, no parabens, no sulfates. Dermatologist-tested. Made in EU.
- Vegan
- Filler-Free
- Paraben-Free
- Sulfate-Free
Data based on in-vitro and clinical observation studies. Individual results may vary.
Real Results · Real Skin
The 12-Week Transformation
Visible improvement in firmness, elasticity, and skin longevity after consistent use of our regenerative peptide protocol, a non-invasive alternative to cosmetic procedures.
Individual results may vary. Images are unretouched.
How To Use
The Daily Protocol
Position the serum within a professional routine for maximum structural results.
Step 01
Prep
Cleanse with Oil-to-Milk Cleanser to prepare the architecture. Start with clean, damp skin.
Read about the Oil-to-Milk Cleanser here →Step 02
Target
Apply 3–4 drops of Firming Peptide Serum to the face, jawline and neck. Press gently to activate absorption.
Step 03
Seal
Follow with Firming Cream to lock in the signaling peptides and create a protective moisture barrier.
Read about the Firming Renewal Cream here →"Consistency is the engine of change. Follow this protocol morning and night for 12 weeks for maximum structural reclamation."
Proven Results
Improved Elasticity
Noticed measurable improvement in skin elasticity and bounce-back with this collagen-boosting serum.
Firmer Skin in 8 Weeks
Saw visibly firmer, denser skin within the first 8 weeks of protocol.
Visible Structural Lift
Observed a visible non-invasive lift in jawline and neck profile definition.
Based on a self-assessment study of 120 participants over 12 weeks.
Verified Reviews
"I started seeing real definition along my jawline by week 6. The texture is unlike anything I've tried before. It absorbs instantly and my skin feels tighter within minutes. I'm on week 10 now and my neck looks years younger."
"The fine lines around my eyes and mouth have softened so much. I followed the protocol for 12 weeks and the difference is remarkable. My dermatologist actually asked what I changed in my routine."
"I was skeptical about peptide serums but the science behind this one convinced me to try it. Week 4 was when I noticed the first changes. My skin felt denser and more substantial. By week 12, the structural lift was clear."
"The serum itself is wonderful and I could feel my skin getting firmer by week 5. Only reason I'm giving 4 stars is the packaging arrived slightly damaged. Product inside was fine, but for a premium brand I expected better packaging."
"At 55, I've tried everything. This is the first serum where I genuinely see a difference in the mirror. My forehead lines have softened and my cheeks feel plumper. The peptide approach is backed by real science and I'm a believer now."
"My jawline has never looked this defined. Friends keep asking if I had something done! The serum has a beautiful lightweight feel and pairs perfectly with my moisturizer. Completely transformed my morning routine."
"Love the product, my skin feels noticeably firmer and more hydrated. Took off one star because my order took about 10 days to arrive, which felt long. Customer service was helpful when I reached out though. Would definitely reorder."
"The 12 week protocol really works. I documented my progress with photos and the before and after is dramatic. The crow's feet around my eyes have smoothed out and my overall complexion looks brighter."
"I purchased this for my mother and she absolutely loves it. She says it's the first product that actually delivered on its promises. Her neck area looks noticeably tighter."
"I started using this as a preventive step in my early 30s and I'm so glad I did. After about 6 weeks my skin looked smoother and felt so much more hydrated. The fine lines I was starting to notice are barely visible now."
"My skin has never felt this firm. I bought this after reading about the peptide technology and it really delivers. The serum sinks in quickly and leaves no residue. My jawline looks sharper after about a month."
"Got this as part of a skincare overhaul so I'm using like five new products at once. Hard to tell exactly how much is this serum vs the others. My skin overall looks better for sure. Gonna try using this on its own next month to really see what it does by itself."
"Got this as a birthday gift to myself and it's one of the best skincare investments I've made. Even at 31 I could see a difference in my skin's overall texture and bounce. My boyfriend even commented that my skin was glowing."
"Obsessed with this serum."
"My daughter recommended this to me. After 8 weeks I have to say she was right. The lines around my mouth have softened and my skin just looks healthier overall. I use it morning and night."
"Great serum but I wish it came in a fragrance free version. The light scent doesn't bother me too much but I know my sensitive skin friends would prefer no fragrance at all. Results are really solid though."
"So good. Already ordered my second bottle."
"Beautiful product. The texture is so lightweight and it absorbs in seconds. After 5 weeks my crow's feet are less noticeable and the skin around my eyes looks brighter."
"Great serum but takes a bit longer to see results than I hoped. By week 7 I definitely noticed a difference though. My face looks more sculpted. Wish it came with a better dropper."
"Worth every single penny."
"I'm a skincare junkie and have tried probably 50 serums over the years. This one stands out. The peptide formula actually works and you can feel it doing something the moment you apply it. My skin is firmer and my pores look smaller."
"My skin is glowing. Friends keep asking what I changed."
"Really nice serum. My only gripe is the bottle is smaller than I expected for the price. But the quality is definitely there and my skin has improved a lot since I started using it. Would love to see a bigger size option."
"I've spent thousands on skincare over the years. Creams, masks, even a few clinic treatments. This little serum has done more for my jawline in 10 weeks than all of that combined. My husband thinks I got work done."
"Bought this for prevention. No regrets. Skin feels amazing."
"Five stars. No hesitation."
"Bought two bottles during the sale and I'm so happy I did. I'm halfway through the second one and my skin has transformed. Firmer, smoother, brighter. My sister asked me to order one for her too."
"I bought this mainly for my dark spots and uneven tone, then realized after it arrived that it's really designed for firming and fine lines. It does make my skin feel really smooth and hydrated though. Probably should have done more research on what this one targets. Nice product just not exactly what I needed."
"Finally a serum that actually does what it says. My skin has never looked this good. Highly recommend!"
"This changed my entire skincare game. The peptide technology is legit."
"Great product but shipping was slower than expected. Took almost two weeks to arrive. The serum itself is lovely though and I can see real improvement in my neck area. Just wish delivery was faster."
"I've been using this religiously every morning and night for 10 weeks now. The results are incredible. My jawline is more defined, my forehead lines are softer, and my skin just has this healthy glow to it that I haven't had in years."
"I know I'm young to be using anti aging products but prevention is key. This serum makes my skin feel incredible. Smooth, bouncy, and hydrated. Only wish the bottle lasted longer for the price."
"Week 8 update and I am blown away. My nasolabial folds have visibly softened."
"This is my holy grail serum. Period."
"Really good serum with visible results. I just wish the price point was a little lower so I could justify using it long term. The quality is definitely premium though. My skin looks noticeably younger."
"My coworker kept getting compliments on her skin and she finally told me her secret. Ordered it that same day. After 6 weeks I totally get it. My complexion is brighter and my skin feels so much firmer."
"At 58 I had pretty much given up on finding something that actually works. A friend insisted I try this. I'm on my third bottle now and the change in my skin is real. Firmer, smoother, and people keep telling me I look refreshed."
"The consistency is perfect. Not too thick, not too watery. My forehead lines have smoothed out and my skin tone is more even. The full routine takes less than 5 minutes."
"Solid serum with good results. My fine lines have softened. Taking off a star because the dropper sometimes gets clogged and it's hard to get the right amount out. Minor issue for an otherwise excellent product."
"10 out of 10 would recommend to anyone."
"My neck was my biggest insecurity. After 12 weeks of this serum, I actually feel confident wearing v neck tops again. The tightening effect is subtle but consistent. Very impressed."
"I love how lightweight this feels. It layers well under my SPF and makeup. My skin looks dewy and plump. Wish it came in a slightly bigger bottle though since I use it fast."
"I get monthly facials and microneedling so it's tough to compare a serum against professional treatments. This is a nice addition to my routine and my skin does feel smoother on the days between appointments. For someone who doesn't do in office stuff this would probably be a total game changer."
"I bought this on a whim and it's been the best impulse purchase ever. My skin texture has improved dramatically in just 5 weeks."
"Hands down the best serum I've ever used. My jawline is sharper, my pores are smaller, and my skin just looks healthier. Already told all my friends about it."
"Starting early with this and I can already tell it's going to be a staple in my routine. My skin is so hydrated and smooth."
"Lovely serum. My skin looks more youthful and feels tighter. Giving 4 stars only because I think the bottle should be bigger for how quickly you go through it. I use a full dropper morning and night and it doesn't last as long as I'd like."
"Just wow. My skin hasn't looked this good since my 30s."
"I've recommended this to every woman I know. The results speak for themselves. My skin is smoother, brighter, and just looks alive again."
"Three months in and I look like a different person. The sagging along my jaw is so much better. I almost cried when I compared my before and after photos."
"Can't believe I waited so long to try this. Game changer."
"Really happy with the results on my skin. The serum feels luxurious. My one complaint is that it has a faint scent that I'd prefer not to have. Otherwise it's an excellent product and I'll keep buying it."
"I was ready to book a consultation for fillers. Decided to try this first. After 12 weeks I cancelled the appointment. The volume in my cheeks is back and my nasolabial folds have softened so much."
"I'm 62 and honestly didn't expect much. But this serum proved me wrong. My skin is noticeably firmer and the deep lines on my forehead have softened. My grandkids said I look younger!"
"Bought this after seeing it on TikTok. Actually lives up to the hype. My skin is glowing."
"My aesthetician noticed a difference before I even told her I was using something new. That says everything."
"Good serum, real results. I can see my jawline looking more defined. Just a heads up that the bottle is on the smaller side. I went through it in about 5 weeks using it twice a day. Would be nice to have a larger size available."
"I didn't think serums could make this much of a difference but here I am, completely converted. My skin has this bouncy quality. Took about 8 weeks though, so patience is needed."
"Best skincare purchase I've made in decades. My neck and jawline look so much better."
"Started this 8 weeks ago and the transformation is real. My complexion is more even and the fine lines around my eyes are fading. Wish the dropper dispensed more evenly though."
"The serum works beautifully on my skin. I do wish shipping was a bit faster though, mine took 12 days. But the product itself is wonderful. My face looks lifted and my skin feels like silk."
"My skin had a little adjustment period the first two weeks where it felt slightly tingly. That went away completely and now it feels great. Giving three stars because I lost those first couple weeks of progress. My skin is smoother now and I think the next bottle will be where I really see the full benefits."
"On bottle number three. That should tell you everything you need to know."
"I love everything about this product. The packaging is gorgeous, the serum feels incredible, and the results are undeniable. My skin looks five years younger."
"My dermatologist actually recommended peptides for my skin type and this is the best one I've found. Clean formula, lightweight feel, and it actually does what it claims."
"Absolutely love this. My face looks lifted and I feel more confident than I have in years."
"Really like this serum. Skin feels great. Only thing keeping it from 5 stars is the price. It's definitely an investment. But I guess you get what you pay for because the results are there."
"My skin is smoother than it's been since college. No joke."
"I was using retinol before and it was irritating my skin. Switched to this peptide serum and the difference is night and day. Gentle, effective, and my fine lines are actually improving instead of just getting irritated."
"Week 10 and my jawline is back. I don't know how else to describe it. The sagging that was starting to bother me has significantly improved. Worth every dollar."
"Gave this to my mom for Mother's Day and she loved it so much that I bought one for myself. We're both seeing great results."
"Very nice serum. Takes about 6 weeks to really see changes but once you do it's noticeable. Giving 4 stars because at 61 I think the results are more subtle than what younger users might experience. Still a good product."
"Three words: buy this now."
"I use this with the moisturizer and cleanser and the full protocol has completely transformed my skin. Firmer, brighter, and the texture is like butter. I get compliments constantly."
"I know 29 might seem young for this but I'm all about prevention. My skin feels incredible and looks so plump and healthy."
"Love the results but the dropper could be better. Sometimes it doesn't pick up enough product and I have to keep squeezing. The serum itself is fantastic though. My skin has never been firmer."
"Ordered this after reading all the reviews. It mostly lives up to the hype. My skin is smoother after 4 weeks. Would give 5 stars if the price point was a little lower."
"So hydrating and my skin just drinks it up. Perfect under makeup too."
"My daughter who's 28 uses this and raves about it. On my 52 year old skin the results are more gradual which I guess makes sense. I can see small improvements in my neck area and my skin definitely feels better. I think younger skin just responds faster. Still a quality serum."
"I took photos every week for 12 weeks and the difference is unreal. My jawline is more defined, the lines on my forehead are softer, and my skin just glows. Best purchase I've made all year."
"Holy cow this stuff works. My skin texture has completely changed in the best way possible."
"I was spending hundreds on facials every month. This serum does more than any facial ever did for my skin firmness."
"Wonderful serum with visible results. My neck looks years younger. I only wish the box it came in was nicer since I bought it as a gift for a friend too and the packaging felt a little plain for the price point."
"Life. Changing. Product."
"Six weeks in and my husband asked if I'm doing something different with my skin. Yes, yes I am. This serum is incredible."
"The fine lines around my eyes used to really bother me. After using this for 10 weeks they're significantly less noticeable. I feel like myself again."
"Super lightweight, absorbs fast, and makes my skin feel amazing. Would be 5 stars but shipping took over a week to the east coast."
"Good product with real results. My skin is firmer. Taking one star off because the price is steep and you need to commit to 12 weeks to really see the full effect. If you can afford it though, it's worth it."
"I keep touching my face because it feels so smooth. The firming is real. My cheeks feel plumper. Only reason for 4 stars is I wish the texture was a tiny bit thicker for winter months."
"Started using this at 28 because why wait? My skin has never been this good. Smooth, hydrated, and glowy."
"My friend couldn't believe I hadn't gotten any procedures done. Nope, just this serum. The results after 12 weeks are honestly remarkable for a topical product."
"Repurchased for the third time. Enough said."
"Love the serum, my skin is so much smoother. Shipping took a while to get to me in Alaska though, almost two weeks. Product itself is great."
"I went through a really stressful year and my skin was showing it. This serum helped me bounce back. My face looks rested and youthful again even when I'm running on no sleep."
"My skin at 58 looks better than it did at 50. This serum is pure magic."
"Clean ingredients, beautiful texture, real results. Only thing I'd change is making the packaging a bit more sturdy. Mine came slightly dented."
"So I actually really like the serum itself. It feels luxurious and my skin is softer. The reason for 3 stars is the dropper broke after a few weeks and I had to pour it out which was messy and I probably wasted some product. Would bump this to 5 stars if the dropper held up better."
"Ordered this on a friend's recommendation and she was so right. My jawline is tighter, my skin is firmer, and the fine lines on my forehead are fading. I use it morning and night without fail."
"This serum is the real deal. My skin looks lit from within."
"Solid product with noticeable results. My skin is definitely firmer. I'd love it if they offered a subscription discount since I'll be using this long term. At full price it adds up."
"Twelve weeks of consistent use and my face looks lifted. The sagging along my jaw that was making me so self conscious has improved dramatically. Wish I found this years ago."
"Preventive skincare for the win. This serum keeps my skin so plump and healthy looking."
"I don't write reviews often but this product earned it. My skin looks younger, period. The fine lines around my eyes and mouth are noticeably smoother."
"Absolutely incredible product. My complexion has never been this even."
"Beautiful serum with great results. My only complaint is I wish the dropper had measurements so I could be more precise with the amount I use. The product itself is wonderful for my fine lines."
"I've been through so many serums that promise results and deliver nothing. This one actually works. My skin texture is completely different after 6 weeks."
"My esthetician noticed the improvement before I even mentioned I was using a new product. She asked me what changed because my skin was glowing and firmer. That was the best compliment."
"Love love love. My skin has never felt softer or looked better."
"At 59 I figured my best skin days were behind me. This serum proved me wrong. My face looks more lifted and my complexion is brighter than it's been in over a decade."
"Very happy with the results on my skin. The fine lines around my mouth have softened. My only minor gripe is I think the bottle could be just a tiny bit bigger. I go through it pretty fast."
"Quick review because I don't have time for long ones. This works. Buy it. Your skin will thank you."
"The improvement in my neck area alone was worth the purchase. I no longer feel like I need to wear scarves to cover up. My skin is noticeably firmer and smoother."
"I've been a loyal customer for 6 months now. Every bottle delivers consistent results. Would love a loyalty discount for repeat buyers though. Hint hint."
"This serum under my sunscreen in the morning is the perfect combo. Skin stays hydrated and glowy all day."
"This was a gift from my sister and I didn't realize there was a whole 12 week protocol until I looked it up later. I've just been using it whenever I remember. The serum is really nice though and my skin does feel good when I use it. Need to get serious about following the full routine."
"My jaw literally dropped when I compared my week 1 and week 12 photos. The difference in my jawline definition is incredible. This is real science backed skincare."
"Lightweight, non greasy, and actually effective. My skin has this dewy plumpness now. One small thing, I wish the scent was a little more neutral."
"Went from considering botox to canceling my appointment. This serum smoothed out my forehead lines better than I expected any topical product could."
"Really pleased with the results. My face looks more youthful. I'd give 5 stars but the packaging felt a bit cheap for a luxury product. The serum inside is top notch though."
"I use the full protocol, serum plus moisturizer plus cleanser. The combination is unbeatable. My skin has literally never looked better."
"Simple review: it works. My skin is firmer and brighter. Done."
"My mother in law asked what I was doing differently because my skin looked amazing at Thanksgiving dinner. Best compliment ever."
"Very effective serum. I'm seeing real changes in my neck and jawline area. Wish shipping to rural areas was quicker but the product makes the wait worth it."
"Replaced my entire serum collection with just this one. It does everything I need."
"My skin barrier feels stronger since I started using this. No more dry patches. My one complaint is I'd love a pump dispenser instead of a dropper."
"I'm a nurse and I work long shifts. My skin used to look so tired and dull by the end of the day. Since starting this serum my skin actually looks fresh even after a 12 hour shift."
"The serum is lovely and I enjoy using it. I live in Arizona where it's super dry and I think the climate makes it harder for any serum to really penetrate. My skin does feel smoother when I use it with a heavier moisturizer on top. Might work better for people in humid climates honestly."
FAQ
Frequently Asked Questions
This peptide serum for face firming uses Hexapeptide-11, a vegan signal peptide, to target the structural layer of your skin where collagen and elastin are produced. As a collagen-boosting serum powered by advanced bio-science, it helps rebuild firmness, redefine the jawline and neck, and smooth fine lines over a 12-week regenerative peptide protocol.
Apply 3-4 drops onto clean, damp skin every morning and evening. Gently press the serum into the face, jawline and neck using upward motions. Follow with the Firming Renewal Cream to seal in the peptides for maximum results.
Most users notice improved hydration and skin texture within the first 2 weeks. Visible firming and structural lifting typically appear between weeks 4-6. Full results, including jawline definition and collagen density restoration, are achieved by week 12.
Hexapeptide-11 is a bioactive vegan signal peptide for collagen renewal that communicates directly with your skin cells to stimulate collagen and elastin production. Unlike surface-level moisturizers, this skin longevity serum works at the structural level to rebuild your skin's natural support framework from within, a non-invasive lifting approach developed through peptide skincare research.
Yes. For the best results we recommend using the serum as part of the complete Sirela protocol: cleanse with the Sensitive Oil-to-Milk Cleanser, apply the Firming Peptide Serum, then seal with the Firming Renewal Cream. The serum is also compatible with most other skincare products. Apply it before heavier creams or oils.
Yes, this anti-sagging skin serum is formulated for even sensitive skin. The formula is 100% vegan, cruelty-free, and free from parabens, sulfates and synthetic fragrances. It's gentle enough for reactive and redness-prone skin. As with any skincare product, we recommend doing a patch test before full use, as individual reactions may vary.
One bottle of the Firming Peptide Serum (30ml) lasts approximately 4-6 weeks with twice-daily use. For the full 12-week protocol, we recommend purchasing two to three bottles or choosing one of our bundle options for the best value.
The star ingredient is Hexapeptide-11, supported by Hydrolyzed Hyaluronic Acid and Sodium Hyaluronate for deep hydration, Aloe Barbadensis Leaf Juice, Jojoba Seed Oil and botanical seed oils (Strawberry, Blueberry), plus Ginkgo Biloba Leaf Extract. The full ingredient list is available on the product packaging and in the Technical Blueprint section on this page.
