SYN-AKE vs Tripeptide-10 Citrulline
Comprehensive side-by-side comparison of mechanisms, dosing, side effects, and research
Also: Dipeptide diaminobutyroyl benzylamide diacetate, SYN-AKE
SYN-AKE is DSM's trade name for dipeptide diaminobutyroyl benzylamide diacetate, the 'snake venom' peptide in a lot of anti-wrinkle creams. The marketing says it mimics Waglerin-1, a toxin from the temple viper. To be clear: there is no venom in it. It is a tiny synthetic molecule, and the evidence that it relaxes wrinkles comes almost entirely from the manufacturer.
Also: Decorinyl, Decorin-like tetrapeptide
Tripeptide-10 citrulline, sold as Decorinyl, is a small synthetic peptide (four residues, despite the name) designed by the Spanish ingredient maker Lipotec to mimic decorin, a protein that keeps collagen fibers neat and evenly sized. The pitch is better collagen, not more collagen. It is a cosmetic ingredient, not an FDA-approved drug, and almost all of the evidence comes from the company that makes it.
Key Comparison Insights
- Both peptides belong to the Skin & Hair category, suggesting similar primary applications.
Detailed Comparison
| Attribute | SYN-AKE | Tripeptide-10 Citrulline |
|---|---|---|
| Category | Skin & Hair | Skin & Hair |
| FDA Status | Not FDA Approved | Not FDA Approved |
| Clinical Status | Pre I II III IV FDA | Pre I II III IV FDA |
| Mechanism of Action | DSM describes SYN-AKE as a reversible blocker of the muscle-type nicotinic acetylcholine receptor, the receptor on muscle that acetylcholine opens to make it contract. Block it, the theory goes, and facial muscles relax a little. That is the real mechanism of Waglerin-1, a 22-amino-acid viper toxin that independent research shows selectively blocks the adult form of this receptor. SYN-AKE itself is a much smaller molecule (beta-alanine, proline and diaminobutyric acid with a benzylamide end, under 500 daltons), and the claim that it does the same thing comes from the manufacturer's own cell test, where innervated muscle cells contracted less. Even DSM's older material calls the binding 'probable'. As with Argireline, there is no independent proof that a cream gets enough of it to facial muscle to matter. | Decorin sits on collagen fibrils and controls how thick they grow and how tightly they pack. With age, decorin activity drops, and collagen fibers become uneven and disorganized, which is part of why older skin loses suppleness. Lipotec researchers took the two short sequences decorin uses to grab collagen, built a library of tetrapeptides around them, and screened them in a test-tube collagen assembly assay. The winner, tripeptide-10 citrulline, made fibrils thinner and more uniform in that assay. The idea is that a well-organized collagen network is more cohesive and supple. Whether a topical cream delivers enough peptide to the dermis to do this in real skin has not been independently shown. |
| Common Dosing | 1-4% of the SYN-AKE solution in a finished product Once or twice daily | Around 0.01% peptide in a finished product Once or twice daily |
| Administration | Topical (serums, creams) | Topical (serums, creams) |
| Typical Duration | 28 days in the manufacturer study; ongoing use to maintain any effect | Studies ran 2 months (60 days); ongoing use for maintained effects |
| Best Time to Take | Morning and/or evening, on clean skin | Morning and/or evening skincare routine |
Possible Side Effects May vary by individual |
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| Research Summary | DSM's brochure reports two pieces of data. In vitro, 0.5 mM of the peptide cut the contraction frequency of innervated muscle cells. In vivo, a 4% SYN-AKE cream was compared with placebo in 15 volunteers per group (aged 40-60), applied twice daily for 28 days, with reductions of roughly 15-21% in skin roughness and wrinkle measures and a headline of 'up to 52%' wrinkle reduction in the best responders. A US patent also describes a double-blind study in 59 women aged 40-55 reporting smaller pores and less shine after 28 days, but that is a patent filing, not a peer-reviewed paper. A 2020 review of cosmetic peptides states plainly that there are no scientific papers describing clinical studies of this peptide, so the efficacy story rests on company data. Bottom line: a well-tolerated cosmetic ingredient with a catchy story. The venom angle is marketing, and the 'up to 52%' number is a best case from a 15-person company study, not a typical result. | The founding paper is Puig, Garcia Anton and Mangues (Lipotec) in the Journal of Cosmetic Science, 2008, which describes the in vitro fibrillogenesis screen. Trade press reporting of the same company work described a 0.01 percent formula applied for two months that made collagen fibers more uniform in a handful of volunteers, and a placebo comparison (22 women on peptide, 21 on placebo) reporting a 54 percent rise in suppleness. Those numbers come from the manufacturer and are not easy to check against full published data. The one independent-looking human trial is Raikou and colleagues, Journal of Cosmetic Dermatology 2017: 24 volunteers split into four groups (combination with acetyl hexapeptide-3, each peptide alone, or neither) for 60 days, with some statistically significant differences in wrinkle microtopography and water loss. Six people per group is very small, and the authors themselves could not explain any synergy. Fair summary: a clever design with real in vitro logic, and thin human data. |
Frequently Asked Questions: SYN-AKE vs Tripeptide-10 Citrulline
What is the difference between SYN-AKE and Tripeptide-10 Citrulline?
SYN-AKE is a skin & hair peptide that syn-ake is dsm's trade name for dipeptide diaminobutyroyl benzylamide diacetate, the 'snake venom' peptide in a lot of anti-wrinkle creams. the marketing says it mimics waglerin-1, a toxin from the temple viper. to be clear: there is no venom in it. it is a tiny synthetic molecule, and the evidence that it relaxes wrinkles comes almost entirely from the manufacturer. Tripeptide-10 Citrulline is a skin & hair peptide that tripeptide-10 citrulline, sold as decorinyl, is a small synthetic peptide (four residues, despite the name) designed by the spanish ingredient maker lipotec to mimic decorin, a protein that keeps collagen fibers neat and evenly sized. the pitch is better collagen, not more collagen. it is a cosmetic ingredient, not an fda-approved drug, and almost all of the evidence comes from the company that makes it. The main differences lie in their mechanisms of action and clinical applications.
Which is better, SYN-AKE or Tripeptide-10 Citrulline?
Neither is universally "better" - the choice depends on your specific goals. SYN-AKE is typically used for skin & hair purposes, while Tripeptide-10 Citrulline is used for skin & hair. Always consult with a healthcare provider to determine which may be appropriate for your situation.
Can SYN-AKE and Tripeptide-10 Citrulline be used together?
Some peptide protocols combine multiple compounds for synergistic effects. However, using SYN-AKE and Tripeptide-10 Citrulline together should only be considered under medical supervision, as both compounds have their own side effect profiles and potential interactions. Research on their combined use may be limited.