Ingredient review
Butyroyl Pentapeptide-24
INCI: Butyroyl Pentapeptide-24
A lab-made peptide that encourages collagen production, making it a gentle anti-aging option for most skin types.
In plain English
Butyroyl Pentapeptide-24 is a small protein fragment (a peptide) that your skin recognizes as a signal to build more collagen and elastin. Think of it as a messenger that tells your skin cells, 'Time to repair and firm up.' It's often used in anti-aging products to help soften fine lines over time, without causing irritation.
Review score
Safety, usefulness, and evidence
Potentially useful with some tradeoffs
The evidence base is useful, but some claims depend heavily on the formula.
Risk flags are low for most users, though the finished product can still irritate.
- Source
- synthetic
- Evidence
- moderate
- Irritation
- low
- Clogging risk
- low
Quick decision guide
Useful, but context matters
Butyroyl Pentapeptide-24 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 Butyroyl Pentapeptide-24.
- 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
moderateThere is useful support, but formula details and claim strength still matter.
What it is
A synthetic pentapeptide (a chain of five amino acids) modified with a butyroyl group to help it penetrate the skin and resist breakdown. It belongs to a class of peptides known as matrikines, which mimic natural collagen fragments to trigger repair responses.
How it works
When applied topically, Butyroyl Pentapeptide-24 binds to receptors on fibroblasts (the cells that produce collagen). This binding stimulates the production of collagen types I, III, and IV, as well as elastin and other extracellular matrix components. Over weeks of consistent use, this can lead to firmer, smoother skin with reduced wrinkle depth.
Pros
Collagen booster
Directly signals skin cells to produce more collagen, which can help plump and firm the skin over time.
Low irritation potential
Unlike some active ingredients (like retinoids), this peptide rarely causes redness or peeling, making it suitable for sensitive skin.
Cons and cautions
Slow results
You won't see dramatic changes overnight; noticeable improvements typically take 4 to 12 weeks of daily use.
Limited standalone power
For deeper wrinkles or advanced aging, this peptide works best as part of a broader anti-aging routine, not as a sole treatment.
Best for
- Adults looking for a gentle, non-irritating anti-aging ingredient
- People with fine lines or early signs of aging who want to boost collagen naturally
Use caution if
- Those with known allergies to synthetic peptides (rare)
Usage tips
Safety summary
Butyroyl Pentapeptide-24 is considered safe for cosmetic use at typical concentrations. It has a low irritation and comedogenic profile, and no significant safety concerns have been reported in published literature or regulatory reviews.
Research notes
Clinical studies on peptide complexes containing Butyroyl Pentapeptide-24 show statistically significant reductions in wrinkle depth and improvements in skin firmness after 8–12 weeks. However, independent peer-reviewed studies specifically on this single peptide are limited, and most evidence comes from manufacturer-sponsored trials.
Common label clues
- Typical concentration
- 0.001% to 0.01%
- Regulatory status
- Approved as a cosmetic ingredient in the EU, US, and most major markets. Not classified as a drug.
- Common uses
- Anti-aging serums, Eye creams, Moisturizers
- Environmental note
- Synthetically produced in laboratories, so it does not rely on animal or plant harvesting. Its environmental impact is low compared to some natural extracts.
Good to know
- Butyroyl Pentapeptide-24 is often combined with Palmitoyl Tripeptide-1 in the popular Matrixyl 3000 complex.
- It is water-soluble and typically found in serum or gel-based formulas.
Common questions
What is Butyroyl Pentapeptide-24 in beauty products?
Butyroyl Pentapeptide-24 is a small protein fragment (a peptide) that your skin recognizes as a signal to build more collagen and elastin. Think of it as a messenger that tells your skin cells, 'Time to repair and firm up.' It's often used in anti-aging products to help soften fine lines over time, without causing irritation.
What does Butyroyl Pentapeptide-24 do in a beauty product?
When applied topically, Butyroyl Pentapeptide-24 binds to receptors on fibroblasts (the cells that produce collagen). This binding stimulates the production of collagen types I, III, and IV, as well as elastin and other extracellular matrix components. Over weeks of consistent use, this can lead to firmer, smoother skin with reduced wrinkle depth.
Is Butyroyl Pentapeptide-24 safe for most people?
Butyroyl Pentapeptide-24 is considered safe for cosmetic use at typical concentrations. It has a low irritation and comedogenic profile, and no significant safety concerns have been reported in published literature or regulatory reviews.
Who should be careful with Butyroyl Pentapeptide-24?
Those with known allergies to synthetic peptides (rare)
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.