sh-Polypeptide-7 FAQs
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5 questions
FAQs
- What is sh-Polypeptide-7 and why is it used in some advanced hair serums and treatments? sh-Polypeptide-7 is the cosmetic-ingredient name for recombinant human growth hormone. It is marketed in hair and scalp products, but no published human trial shows that it helps hair growth, and its safety on the scalp has not been studied.
- Does sh-Polypeptide-7 stimulate hair follicles or reduce scalp inflammation? sh-Polypeptide-7 is the INCI name for a lab-made form of human growth hormone (somatotropin) — not EGF, which is sh-Oligopeptide-1. Growth hormone and IGF-1 signalling is documented in hair follicle biology, but there is no published human trial of sh-Polypeptide-7 applied to the scalp for hair growth or scalp inflammation.
- Is sh-Polypeptide-7 considered a natural or synthetic ingredient, and how is it typically applied? sh-Polypeptide-7 is a synthetic (lab-made) form of human growth hormone, used in some topical skin and hair-care products. There is no published human trial showing that it benefits hair, and its safety on the scalp has not been studied.
- Can sh-Polypeptide-7 be combined with other treatments like minoxidil or microneedling for better results? No published study tests sh-Polypeptide-7 alongside minoxidil or microneedling, or on its own for hair regrowth, so any added benefit is speculation. The combination that does have published support — a systematic review and randomised trials — is microneedling plus topical minoxidil.
- Are there any safety concerns or allergic reactions associated with sh-Polypeptide-7 in topical hair products? sh-Polypeptide-7 is recombinant human growth hormone, and no published human study has tested its safety on the scalp, so its safety is not established. Dermatologists commonly advise patch testing a new scalp product, and people who are pregnant, breastfeeding, or have diabetes, a history of cancer or an endocrine condition should ask a doctor first.