Ingredient review
SH-Polypeptide-75
INCI: SH-Polypeptide-75
SH-Polypeptide-75 is a lab-made peptide that signals skin to produce more collagen, helping reduce fine lines and improve firmness with minimal irritation risk.
In plain English
SH-Polypeptide-75 is a short chain of amino acids (the building blocks of protein) made in a lab. When applied to skin, it acts like a tiny messenger, telling skin cells to produce more collagen and elastin. This helps plump up the skin, making fine lines less noticeable and improving overall firmness. Think of it as a gentle nudge to your skin's natural repair system, without the harsh side effects of stronger anti-aging ingredients.
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
SH-Polypeptide-75 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 SH-Polypeptide-75.
- 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
SH-Polypeptide-75 is a synthetic peptide, specifically a hexapeptide (made of six amino acids), designed to mimic naturally occurring signaling peptides in the skin. It is produced through chemical synthesis, ensuring high purity and consistency.
How it works
SH-Polypeptide-75 works by binding to receptors on skin cells (fibroblasts) and triggering a cascade of signals that increase the production of collagen, elastin, and other structural proteins. This helps reinforce the skin's support matrix, leading to improved firmness, elasticity, and a reduction in the appearance of fine lines and wrinkles over time.
Pros
Gentle anti-aging support
Unlike retinoids or acids, SH-Polypeptide-75 works without causing peeling, redness, or irritation, making it ideal for daily use even on sensitive skin.
Backed by peptide science
Peptides like SH-Polypeptide-75 have a solid research foundation in dermatology for stimulating collagen, giving users a science-backed option for maintaining skin youthfulness.
Cons and cautions
Slow, cumulative results
You won't see changes overnight. It typically takes 4–12 weeks of consistent use to notice visible improvements in firmness and wrinkle depth.
Effectiveness depends on formulation
The peptide must be properly stabilized and delivered at an effective concentration. A low-quality formula may not provide the same benefits.
Best for
- Anyone looking to reduce fine lines and improve skin firmness
- People with sensitive skin who cannot tolerate stronger anti-aging actives like retinoids
Use caution if
- Those expecting immediate or dramatic results (peptides work slowly)
Usage tips
Safety summary
SH-Polypeptide-75 is considered safe for topical use in cosmetics at typical concentrations. It has a low irritation and comedogenic risk, making it suitable for most skin types, including sensitive skin. No significant safety concerns have been reported in published literature or by regulatory bodies.
Research notes
Peptides like SH-Polypeptide-75 are supported by moderate evidence from in vitro and clinical studies showing they can stimulate collagen synthesis and improve skin firmness and wrinkle appearance. However, individual results vary, and more long-term human studies would strengthen the evidence base.
Common label clues
- Typical concentration
- 0.1% to 1%
- Regulatory status
- Approved as a cosmetic ingredient in the US, EU, and other major markets. It is not classified as a drug and does not require FDA pre-market approval.
- Common uses
- Anti-aging serums, Firming creams, Eye treatments
- Environmental note
- As a synthetic peptide, it is produced in controlled lab conditions, which reduces the environmental impact associated with harvesting natural ingredients. However, its production involves chemical synthesis and purification steps that require energy and solvents.
Good to know
- SH-Polypeptide-75 is often listed near the middle or end of an ingredient list because it is effective at low concentrations.
- It can be combined with other peptides or antioxidants like vitamin C for enhanced anti-aging benefits.
Common questions
What is SH-Polypeptide-75 in beauty products?
SH-Polypeptide-75 is a short chain of amino acids (the building blocks of protein) made in a lab. When applied to skin, it acts like a tiny messenger, telling skin cells to produce more collagen and elastin. This helps plump up the skin, making fine lines less noticeable and improving overall firmness. Think of it as a gentle nudge to your skin's natural repair system, without the harsh side effects of stronger anti-aging ingredients.
What does SH-Polypeptide-75 do in a beauty product?
SH-Polypeptide-75 works by binding to receptors on skin cells (fibroblasts) and triggering a cascade of signals that increase the production of collagen, elastin, and other structural proteins. This helps reinforce the skin's support matrix, leading to improved firmness, elasticity, and a reduction in the appearance of fine lines and wrinkles over time.
Is SH-Polypeptide-75 safe for most people?
SH-Polypeptide-75 is considered safe for topical use in cosmetics at typical concentrations. It has a low irritation and comedogenic risk, making it suitable for most skin types, including sensitive skin. No significant safety concerns have been reported in published literature or by regulatory bodies.
Who should be careful with SH-Polypeptide-75?
Those expecting immediate or dramatic results (peptides work slowly)
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.