Peptide education
Dipeptide diaminobutyroyl benzylamide diacetate
Dipeptide diaminobutyroyl benzylamide diacetate is a synthetic ingredient used in skin-conditioning cosmetics.
A controlled study reported changes in some forehead wrinkle measures with a peptide-containing formulation. Two other studies tested a combined serum without a control group. Neither establishes the effect of pure peptide alone.
Overview
Quick answer
A study of a serum containing several ingredients cannot tell us what this ingredient does on its own. It is not botulinum toxin or snake venom.
Does it work like botulinum toxin?
The substances and routes are different. The cosmetic studies did not directly measure an equivalent effect on facial neuromuscular transmission.
What did the studies show?
A controlled comparison found differences in some forehead measurements with a peptide-containing blend. Two uncontrolled serum studies reported changes from baseline, but did not isolate the peptide's contribution.
What is known about safety?
No adverse events were reported during the two short serum studies. This does not establish long-term safety or rule out rare reactions.
Evidence
Evidence snapshot
The active formulation contained a peptide ingredient blend and differed from the placebo in its carriers.
A single-arm study reported changes from baseline after use of the combined serum.
A second single-arm study evaluated facial expressions after use of the same serum.
Claims
Common claims vs evidence
| Claim | Human evidence | Mechanistic evidence | Verdict |
|---|---|---|---|
| This ingredient alone reduces expression lines. | One comparison used a peptide blend with different carriers from placebo; two other studies tested a combined serum without a control group. | The cosmetic studies did not directly establish a peptide-specific effect on facial muscle activity. | The ingredient's individual contribution remains uncertain. |
Bottom line
Main takeaway
This is a cosmetic ingredient, not botulinum toxin or venom.
The finished serum and its other ingredients affect both results and tolerability.
An ingredient-specific comparison with a matched vehicle would improve attribution.
Identity
What it is
The full ingredient name describes a modified synthetic substance listed for skin conditioning. Similar marketing names do not establish chemical identity.
Research
Research evidence
A controlled comparison tested a peptide-containing blend against placebo. Two other studies examined a multi-ingredient serum without a control group.
| Study / evidence area | Population | Design | Product context | Main outcome | Limitations | Weight |
|---|---|---|---|---|---|---|
| Controlled formulation comparison | 57 women aged 50 to 65; 29 assigned the active formulation and 28 placebo | Randomized, double-blind, placebo-controlled study over 4 weeks | A cream containing 4% of a commercial peptide ingredient blend, compared with a placebo formulation | Forehead wrinkle area and length while frowning differed in favor of the active formulation; mouth-area measures did not differ significantly. | The placebo replaced the glycerin-containing blend with water; follow-up was short and authors had industry affiliations. | Limited controlled formulation evidence |
| Static wrinkle serum study | 50 Chinese women completed clinical assessments | Single-arm study with measurements over 12 weeks | Serum containing the peptide, acetyl hexapeptide-8, gluconolactone, niacinamide, and laminaria extract | Investigators reported lower wrinkle scores compared with baseline. | No control group or test of this ingredient alone; manufacturer-funded study. | Limited uncontrolled product evidence |
| Dynamic wrinkle serum study | 42 Chinese women completed assessments | Single-arm study with measurements over 8 weeks | The same multi-ingredient serum | Investigators reported lower ratings of expression-related lines compared with baseline. | No control group or ingredient-only arm; seven participants were lost to follow-up. | Limited uncontrolled product evidence |
Use context
Reported use context
The studies used specific facial formulations twice daily; their results do not apply to every product.
Study and label context
Participants applied their assigned formulation morning and evening for 4 weeks.
The 4% concentration referred to a commercial ingredient blend, not pure peptide; this is not a recommendation.Participants applied the study serum morning and evening.
The studies lasted 12 and 8 weeks and tested a complete formula, not the ingredient alone; this is not a recommendation.Cautions
Safety and unknowns
- The serum studies reported no adverse events, but their size and duration cannot rule out uncommon or delayed reactions.
- Effects of applying other formulations or using non-topical routes are not established by these studies.
Product quality
Product identity and quality
The full formulation can influence delivery, performance, and skin tolerability.
Ingredient identity
Check the complete ingredient name rather than assuming similar peptide names are interchangeable.
Concentration basis
The amount of an ingredient solution is not necessarily the amount of pure peptide.
Mechanism
How it is proposed to work
The ingredient is marketed for expression lines, but a claimed nerve or muscle effect is not established by the cited product studies.
The tested serum contained several other actives and did not isolate this ingredient's mechanism.
Details
Technical details
Sources
References
- 1.
Primary study. Facial Expression Wrinkles and Their Relaxation by a Synthetic Peptide
doi:10.1007/s10989-020-10146-z
Randomized, double-blind comparison of a peptide-containing blend and a placebo formulation; the formulations differed in their carriers.
- 2.
doi:10.1111/ics.70087 PMID:41668671
Two single-arm studies of one multi-ingredient serum; the peptide's contribution was not isolated.
- 3.
Health Canada. Dipeptide Diaminobutyroyl Benzylamide Diacetate
Ingredient listing identifies the substance and its skin-conditioning function.
- 4.
FDA. Is It a Cosmetic, a Drug, or Both? (Or Is It Soap?)
US product classification depends on intended use.