Bespoke peptide skincare manufacturing
British VitaTech is a peptide skincare manufacturer that develops and makes custom peptide serums and creams for brands worldwide, from formulation to finished product, and the brand owns the formula.
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Serums, creams and eye care built on cosmetic peptides
Signal, copper and expression-line peptides are the basis of the bespoke serums, creams and eye care we develop and make in-house as a peptide skincare manufacturer for premium wellness brands, taking each from the first formula to a finished product that is assessed, notified and ready to sell in the UK, the EU and the US. We match each peptide to the claim its evidence supports and keep every claim to how skin looks and feels. Each product comes with its specification, safety report, stability and challenge test reports and a certificate of analysis for every batch.
Some private label peptide serums are stock formulas that anyone can buy under their own name. Bespoke development gives your brand its own peptide system, base, texture and pack, with stability and safety data behind them. Your formula is yours, with its specification and data, as our formula ownership commitment sets out.
- Peptide serums and ampoules. Water-based serums and light emulsions that pair signal peptides with hyaluronic acid, niacinamide or panthenol.
- Copper peptide serums. GHK-Cu formulas built around the pH, partners and pack the copper complex needs.
- Firming creams and night creams. Richer emulsions that carry peptides alongside barrier lipids.
- Eye creams and gels. Light textures for the thin skin around the eyes, with peptides for the look of fine lines and puffiness.
- "Instant lift" and expression-line serums. Film-forming tensors for an immediate smoother look, combined with the neurotransmitter-inhibiting peptides behind the "faux-tox" trend, and volumising plant actives for fuller-looking lips and cheeks.
- Lip, neck, body and scalp. Peptide lip care and neck creams, body care that borrows facial actives, and peptides in scalp care and hair serums.
Our pages on PDRN and skin booster serums and barrier and sensitive-skin care cover the clinic-inspired actives that sit beside peptides. Our skincare and cosmetic manufacturing hub covers the full range and the cosmetics rules in each market. We also develop and make haircare.
How a peptide project runs
Our research and development team runs each project from brief to scale-up. We start from your brief, claims and markets, choose the peptides and levels the evidence supports, and make laboratory samples for you to judge on texture, finish and skin feel. The lead sample goes into stability in its final pack while we write the claims test plan, and a pilot batch confirms the process before the first production run. R&D is a paid stage that can be included with an order of the right size.
Four peptide families and the human evidence behind each
Four families of cosmetic peptides
Cosmetic peptides fall into four families by how they are thought to work (Schagen, Cosmetics, 2017). The human data differ sharply between them, so we match each claim to the family and the evidence behind it.
| Family | How it is thought to work | Examples | What the human data show |
|---|---|---|---|
| Signal peptides | Fragments of skin matrix proteins that, in laboratory studies, prompt skin cells to make more collagen and elastin | Palmitoyl pentapeptide-4 (pal-KTTKS), palmitoyl tripeptide-1 | Placebo-controlled trials, including a split-face trial in 93 women (Robinson and colleagues, 2005). Many studies test mixtures, where "the actual effect of individual peptides on the skin remains unclear" (Schagen, 2017). |
| Carrier peptides | Deliver trace elements such as copper to the skin | Copper tripeptide-1 (GHK-Cu) | Extensive laboratory data, but limited human evidence. A 2024 review found "a surprising absence of clinical studies" of GHK-Cu and its palmitoyl form (Mortazavi and colleagues, BioImpacts, 2024). |
| Neurotransmitter-inhibiting peptides | Mimic part of SNAP-25, a protein that nerve endings use to release acetylcholine, to soften the look of expression lines | Acetyl hexapeptide-8, named acetyl hexapeptide-3 in older studies | Small studies: in one, 10 women used it around the eyes for a month and wrinkle depth fell by up to 30% (Blanes-Mira and colleagues, 2002; Schagen, 2017). |
| Enzyme-inhibiting peptides | Slow, in the laboratory, the enzymes that break down skin proteins | Soy, rice and other plant peptides | Very few or no in vivo studies (Schagen, 2017). |
Peptide size and penetration
Molecules above about 500 daltons cross intact skin poorly (Bos and Meinardi, Experimental Dermatology, 2000), and most peptides are larger. KTTKS weighs about 564 daltons, and attaching palmitic acid takes pal-KTTKS to about 802; the fatty tail makes the peptide more fat-loving, which in laboratory work helps peptides move into the outer skin (Schagen, 2017). GHK-Cu is small, about 403 daltons, but strongly water-loving, so size alone does not carry it through the skin's lipid barrier (Mortazavi and colleagues, 2024). The vehicle decides how much reaches the skin: we choose emulsions and serums that keep peptides in contact with the surface, and any penetration aid goes through the safety assessment.
Levels, stability and compatibility
Signal peptides work at very low levels: the 93-woman trial used pal-KTTKS at 3 parts per million (Robinson and colleagues, 2005). At such levels, showing that the peptide is present takes a sensitive method such as liquid chromatography with mass spectrometry, and we write it into the specification where a validated method exists. We formulate most peptides near skin pH, away from strong acids and bases that break peptide bonds over time. In laboratory tests, GHK-Cu was most sensitive to oxidation, while staying stable in water at pH 5.5 and 7.4 under heat stress (Mortazavi and colleagues, 2024). Copper ions also speed the breakdown of vitamin C, so we keep copper peptides and L-ascorbic acid in separate products and screen every peptide against the other actives, the preservative and the pack.
Instant effects and volumising actives
An "instant lift" comes from film-forming tensors, such as certain plant proteins and polysaccharides, that tighten as they dry and smooth the look of skin until the product is washed off: a real, measurable and temporary effect on appearance. Neurotransmitter-inhibiting peptides and volumising plant actives work over repeated use, so their claims rest on studies of the finished product over that period. For every active, we ask the supplier for its human data before any claim goes on the pack, and no label compares a cream to injections or surgery.
How a peptide skincare manufacturer protects peptides, batch to pack
- Specify. We agree the specification with you: peptides and grades, levels, claims, pack, markets and shelf life, with every ingredient screened against each market's annexes.
- Approve suppliers. Every material comes from a supplier approved before use and reviewed every year, and we check each peptide lot's certificate of analysis for identity and purity.
- Weigh and build. Water and oil phases are prepared and emulsified, and peptides are dissolved and added as the batch cools. Copper peptide serums are built in an order that keeps oxidisers away from the copper complex.
- Check in process. Appearance, colour, odour, pH, viscosity and fill weight are checked against the specification. Copper peptide serums carry a blue tint, so colour is an early sign of change.
- Fill and label. Products are filled into airless pumps, droppers or tubes and labelled, and labels are verified on every batch.
- Test, retain and release. Every batch is tested by accredited partner laboratories (ISO/IEC 17025) as part of every order, three retained samples per batch are kept for shelf life plus one year, and every batch is released by quality control against its specification.
Packs that protect peptides
Peptides and copper complexes keep best away from air and light. We fill serums into airless pumps or tinted glass droppers, and creams into airless jars or tubes, and each pack passes compatibility testing with your formula before we approve it. Every unit carries its batch code and either a best before date or a period-after-opening symbol, set by the stability results.
The peptide product file you keep
Each product comes with its documents: the agreed specification, a certificate of analysis for every batch, the stability and challenge test reports, the CPSR, and the product information file built with you for your Responsible Person. We check label and claims copy for each market you sell in, and add claims test reports to the file when you commission them.
Timing instant-lift claims and tracking peptide content
Before launch, every product has a cosmetic product safety report (CPSR), signed by a qualified safety assessor who compares each ingredient's expected exposure with its safety data, following the SCCS Notes of Guidance. For peptides, the assessor draws on the supplier's toxicology and use levels. We run the test programme with accredited partner laboratories:
- Stability in the final pack, accelerated and real-time, tracking appearance, colour, odour, pH, viscosity and peptide content where a validated assay exists. Our stability and shelf life testing page sets out the method.
- Compatibility between formula and pack: no leaching, swelling, stress cracking or weight loss, and protection from air for copper peptides.
- Challenge testing to ISO 11930 for every product that contains water.
- Microbiology on finished product, against the limits your specification sets.
- Claims tests, arranged with specialist partners: instrumental readings of firmness, elasticity and hydration, 3D imaging of lines, expert grading, and consumer perception tests. "Instant" claims are measured at set times after application, so the pack can say how long the effect lasts.
We make every product in our UK facility, which is ISO 9001 certified by BSI, and the certificate's scope includes cosmetics.
Firmer-looking, not collagen-building: peptide claims by market
Peptide skincare sells as a cosmetic in all three markets when its claims describe how skin looks and feels. This is the position as of October 2026.
- Great Britain. We arrange the CPSR and build the product file for your UK Responsible Person, who notifies the product through SCPN before sale. Advertising rules accept claims about "temporary effects" or the "appearance of lines and wrinkles", and want "a much higher level of evidence" for physiological or cumulative effects (CAP advice on creams).
- European Union and Northern Ireland. The same file supports CPNP notification by your Responsible Person in the EU, or in Northern Ireland for that market. A claim that carries a peptide's benefit to the product needs proof the peptide is present at an effective concentration. EU labels carry the expanded fragrance allergen list, and added retinol stays within 0.3% retinol equivalent (0.05% in body lotions) with the vitamin A warning. Great Britain keeps the original allergen list and sets no vitamin A limit.
- United States. A label says skin looks firmer, not that the product builds collagen or relaxes muscles, because a product intended to affect "the structure or any function of the body" is a drug (FDA). Cosmetics need facility registration and product listing under MoCRA. Our FDA registration is a food facility registration for dietary supplements, so we register our UK facility under MoCRA as US skincare programmes start.
We write every claim and the test behind it into the specification before the first sample. Start your project with your peptides, claims and markets.
References: Robinson and colleagues, International Journal of Cosmetic Science (2005); Schagen, Cosmetics (2017); Mortazavi and colleagues, BioImpacts (2024); Bos and Meinardi, Experimental Dermatology (2000); Regulation (EC) No 1223/2009 on cosmetic products (2009); Commission Regulation (EU) No 655/2013 on common criteria for cosmetic claims (2013); ASA, Pulse report: understanding health claims in online ads (2026); US FDA, Is it a cosmetic, a drug, or both? (2024).
Where this is going
To 2030
Up: peptides settle in as a durable structural skincare active
To 2036
Up, maturing: a mainstream active, with GHK-Cu needing human trials
What to watch
Thin human evidence and confusion with research peptides
Questions brands ask
Can you make a private label peptide serum?
Yes. We develop and make custom peptide serums built to your brief rather than a stock formula: the peptide system, levels, base, texture and pack, with stability and safety data behind them. We match each peptide family to the claim its evidence supports, and confirm the peptide is in the finished product where a validated method exists. Your formula is yours, with its specification and data, and R&D is a paid stage that can be included with an order of the right size.
What can we claim for a copper peptide (GHK-Cu) serum?
Cosmetic claims about how skin looks and feels, each backed by tests on the finished serum. GHK-Cu has extensive laboratory data, but a 2024 review found "a surprising absence of clinical studies" in people, so the ingredient's reputation can't carry a product claim on its own. We test hydration, firmness or the look of lines on your formula, keep the copper complex away from vitamin C and oxidisers, and check its stability in the final pack.
Can a peptide serum claim an instant lift?
Yes, as a temporary change in how skin looks, measured on the finished product. Film-forming tensors tighten as they dry, and we measure the effect at set times after application so the pack can say how long it lasts. As of October 2026, UK advertising rules accept claims about temporary effects and the appearance of lines, and say a cream presented as working like surgery is unlikely to be acceptable. In the US, a claim to relax muscles would make the product a drug.
Are cosmetic peptides the same as research peptides?
No. The ASA describes research peptides as products for research purposes only that must not be marketed to consumers, and peptides presented as modifying a physiological function could be classed as medicines needing an MHRA marketing authorisation. The ASA's 2026 review of online health ads rated 43% of the research-peptide ads it checked as high risk. Cosmetic peptides are ingredients applied to the skin to change how it looks. We make cosmetic peptide skincare.
How do you show a peptide is in the finished product?
Through the specification and the tests behind it. Each peptide lot comes with a certificate of analysis for identity and purity, and where a validated method exists, an accredited partner laboratory measures the peptide in the finished product, often by liquid chromatography with mass spectrometry because use levels are so low. As of October 2026, EU claims rules expect evidence such as "demonstrating the presence of the ingredient at an effective concentration" when a claim carries an ingredient's properties to the product.
Can you make peptide skincare for the US market?
Yes. As of October 2026, US cosmetics need facility registration and product listing under MoCRA, with safety records held by the responsible person named on the label. Our FDA registration is a food facility registration for dietary supplements, so we register our UK facility under MoCRA as US skincare programmes start. US claims stay cosmetic: a product intended to affect the structure or any function of the body is a drug, so labels say skin looks firmer, not that collagen grows.