Ingredient
sh-Polypeptide-2
sh-Polypeptide-2 is flagged for pregnancy. The concern behind the strongest flag is hormone disruptor and absorbed into the body.
- Recombinant Human TGF-β1
- Transforming Growth Factor Beta 1
- rh-TGF-β1
Verdict by profile
Truva checks every ingredient against six profiles. Jump to any of them for the full assessment.
- Strongest verdict
- Caution Advised
- Its verdict for pregnancy, the profile this one is worst in
- Profiles flagged
- 1 of 6
- Counting avoid, high risk and medium risk
- Irritancy
- 1 of 5
- Higher means more likely to sting or redden
sh-Polypeptide-2 and pregnancy
Caution Advised
- Hormone disruptor
- Absorbed into the body
- Fetal development
sh-Polypeptide-2 is a synthetic form of transforming growth factor beta 1 (TGF-β1), a signaling protein that regulates cell proliferation, differentiation, and tissue development. It plays critical roles in embryonic development and organ formation. There are no studies specifically evaluating topical sh-Polypeptide-2 during pregnancy. The theoretical concern is that TGF-β signaling is essential for proper fetal development, particularly in cardiovascular, skeletal, and immune system formation. While topical peptides typically have minimal absorption due to their large size, the biological importance of TGF-β in pregnancy raises uncertainty about potential effects, especially during the first trimester. Given the lack of safety data and the known role of TGF-β in fetal development, many obstetricians and dermatologists recommend avoiding cosmetic products containing growth factor peptides like sh-Polypeptide-2 during pregnancy as a precautionary measure. Alternative anti-aging ingredients with established pregnancy safety profiles are preferable.
sh-Polypeptide-2 and breastfeeding
Safe to Use
sh-Polypeptide-2 is a large peptide molecule (approximately 25 kDa) that has minimal ability to penetrate skin barriers. While it mimics a naturally occurring growth factor, its molecular size makes systemic absorption and transfer to breast milk highly unlikely. There is no specific data on sh-Polypeptide-2 use during breastfeeding. However, the peptide's large molecular weight and poor skin penetration characteristics suggest minimal risk of reaching breast milk or affecting breastfed infants. TGF-β is also naturally present in breast milk as a beneficial immune-modulating factor. While there are no specific restrictions from lactation experts, women who prefer caution may avoid applying sh-Polypeptide-2 on the chest and breast area. For facial and body application, the risk is considered minimal due to the limited absorption of large peptide molecules.
sh-Polypeptide-2 and postpartum
Safe to Use
sh-Polypeptide-2 can be particularly beneficial for postpartum skin recovery in women not breastfeeding. TGF-β plays important roles in wound healing and collagen production, which can help address postpartum skin changes including stretch marks, loss of elasticity, and texture concerns. Postpartum women not breastfeeding can safely use sh-Polypeptide-2 for skin regeneration and anti-aging benefits. The ingredient supports tissue repair and may help improve the appearance of stretch marks and restore skin firmness after pregnancy. It is generally well-tolerated and suitable for most skin types.
sh-Polypeptide-2 and trying to conceive
Safe to Use
sh-Polypeptide-2 is considered low risk for women trying to conceive. While TGF-β plays roles in reproductive physiology, topical application of this peptide results in minimal systemic absorption and is unlikely to affect fertility or conception. Women trying to conceive who wish to be extra cautious may choose to discontinue sh-Polypeptide-2 once they begin actively trying, given that pregnancy precautions recommend avoiding it. However, there is no evidence that continued use before confirmed pregnancy poses risks to conception.
sh-Polypeptide-2 and PCOS
Safe to Use
sh-Polypeptide-2 does not have direct effects on androgen or insulin pathways that are typically of concern in PCOS. TGF-β is primarily involved in tissue repair and remodeling rather than hormonal regulation. Women with PCOS can safely use sh-Polypeptide-2 for anti-aging benefits without concerns about worsening hormonal symptoms. The ingredient may actually provide anti-inflammatory benefits that could be helpful for PCOS-related skin inflammation. There are no known interactions between sh-Polypeptide-2 and PCOS or its treatments. It can be incorporated into skincare routines alongside other ingredients for managing PCOS-related skin concerns such as acne or post-inflammatory hyperpigmentation.
sh-Polypeptide-2 and general use
Safe to Use
sh-Polypeptide-2 is a cosmetic peptide used for anti-aging and skin regeneration benefits. It mimics a natural growth factor that supports collagen production, wound healing, and tissue remodeling, making it valuable for improving skin texture and firmness. For the general population, sh-Polypeptide-2 is considered safe with minimal risk of adverse effects. Its large molecular size limits skin penetration to the upper layers where it can stimulate beneficial skin responses. Reports of adverse reactions are rare, though mild irritation is possible in sensitive individuals. Recombinant peptides like sh-Polypeptide-2 are approved for cosmetic use globally. While long-term safety data continues to accumulate, current evidence suggests it is well-tolerated and effective for anti-aging purposes when formulated properly in cosmetic products.
Everything else flagged for the same profiles
Related ingredients
Ingredients suggested in place of sh-Polypeptide-2, each one with its own page here.
Ingredients that raise the same concerns.
Where this came from
Truva summarises published guidance from bodies including ACOG, the FDA, the EU SCCS and the Cosmetic Ingredient Review. It has no access to your medical history and it is not a substitute for your doctor, dermatologist or midwife. These assessments have not been reviewed by a clinician, and nothing here is a diagnosis or a prescription. If you are pregnant, breastfeeding or being treated for PCOS, take the ingredient list to the person looking after you.
Assessment last pulled from the ingredient database on .
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