Ingredient review
PEG-100 Melittin Amide
INCI: METHOXY PEG-100 PROPYL MELITTIN AMIDE
A lab-made peptide inspired by bee venom that aims to smooth and firm skin, but human research is very limited.
In plain English
This ingredient is a synthetic version of a peptide found in bee venom, modified with PEG (a common cosmetic thickener) to make it more stable and gentle. In skincare, it's meant to help skin look firmer and more lifted by encouraging natural collagen support. Think of it as a milder, lab-made alternative to actual bee venom treatments.
Review score
Safety, usefulness, and evidence
Potentially useful with some tradeoffs
The evidence base is still emerging, so marketing claims deserve extra caution.
Risk flags are low for most users, though the finished product can still irritate.
- Source
- synthetic
- Evidence
- emerging
- Irritation
- low
- Clogging risk
- low
Quick decision guide
Useful, but context matters
PEG-100 Melittin Amide is generally a lower-concern ingredient when the full formula suits your skin.
Plain-English read
Treat this as a practical screening step before you compare products that contain this ingredient.
- Step 1Start with the score, then check the irritation and clogging risk before judging PEG-100 Melittin Amide.
- Step 2Use the "Best for" and "Use caution if" sections to match the ingredient to your skin, not just to a marketing claim.
- Step 3If a product stings, breaks you out, or worsens irritation, judge the finished formula and stop using it even if the ingredient scores well.
Score terms in plain English
Irritation risk
lowLess likely to sting, burn, or bother most users, though sensitive skin can still react.
Clogging risk
lowLess likely to feel heavy or contribute to clogged pores for most skin types.
Evidence level
emergingThe ingredient may be promising, but claims should be treated more cautiously.
What it is
A synthetic peptide conjugate where a melittin-derived peptide (from bee venom) is attached to a PEG chain to improve stability and reduce irritation potential.
How it works
It is believed to interact with skin cells to temporarily tighten the skin's surface and stimulate collagen-supporting signals, leading to a firmer appearance over time. The PEG component helps it penetrate the upper layers of skin without causing stinging or redness.
Pros
Gentle firming support
Designed to be less irritating than natural bee venom while still offering a tightening sensation that some users find appealing.
Synthetic and stable
The PEG modification makes the ingredient more stable in formulas and less likely to cause unexpected reactions compared to raw bee venom.
Cons and cautions
Limited evidence
Most claims are based on lab studies or small trials; there is no large-scale human research confirming long-term anti-aging benefits.
Potential for overpromise
The temporary tightening effect can be mistaken for permanent firming, leading to unrealistic expectations about results.
Best for
- Adults looking for a gentle firming ingredient in anti-aging products
- Those who want a peptide-based alternative to bee venom treatments
Use caution if
- Anyone with known allergies to bee venom or bee products (cross-reactivity risk is low but possible)
- Pregnant or nursing individuals due to lack of safety data
Usage tips
Safety summary
Low irritation and comedogenic risk based on its synthetic peptide nature. However, long-term safety data is sparse, and individuals with bee venom allergies should exercise caution.
Research notes
Evidence is mostly from in vitro studies and small human trials. No large-scale peer-reviewed studies confirm its efficacy for firming or anti-aging.
Common label clues
- Typical concentration
- 0.1% to 1% in leave-on products
- Regulatory status
- Generally considered safe for cosmetic use in the EU and US at typical concentrations, though not specifically reviewed by the CIR Expert Panel.
- Common uses
- Anti-aging serums, Firming creams, Eye treatments
- Environmental note
- The PEG component is derived from petroleum, so it is not biodegradable. However, the small amounts used in skincare have minimal environmental impact.
Good to know
- This ingredient is not the same as actual bee venom; it's a synthetic copycat
- PEG-100 indicates a specific chain length that helps with skin penetration and product texture
Common questions
What is PEG-100 Melittin Amide in beauty products?
This ingredient is a synthetic version of a peptide found in bee venom, modified with PEG (a common cosmetic thickener) to make it more stable and gentle. In skincare, it's meant to help skin look firmer and more lifted by encouraging natural collagen support. Think of it as a milder, lab-made alternative to actual bee venom treatments.
What does PEG-100 Melittin Amide do in a beauty product?
It is believed to interact with skin cells to temporarily tighten the skin's surface and stimulate collagen-supporting signals, leading to a firmer appearance over time. The PEG component helps it penetrate the upper layers of skin without causing stinging or redness.
Is PEG-100 Melittin Amide safe for most people?
Low irritation and comedogenic risk based on its synthetic peptide nature. However, long-term safety data is sparse, and individuals with bee venom allergies should exercise caution.
Who should be careful with PEG-100 Melittin Amide?
Anyone with known allergies to bee venom or bee products (cross-reactivity risk is low but possible) Pregnant or nursing individuals due to lack of safety data
Research sources
Ingredient reviews are educational and are not medical advice. Patch test new products and ask a licensed clinician about persistent irritation, allergies, pregnancy-specific questions, or diagnosed skin conditions.