Ingredient
Sr-Oligopeptide-91 Clostridium Botulinum Polypeptide-1
Sr-Oligopeptide-91 Clostridium Botulinum Polypeptide-1 is flagged for pregnancy, breastfeeding, postpartum, trying to conceive and general use. The concern behind the strongest flag is absorbed into the body and fetal development.
- Botulinum-like Peptide
- Topical Botox Alternative
- Acetyl Hexapeptide-8 Derivative
Verdict by profile
Truva checks every ingredient against six profiles. Jump to any of them for the full assessment.
- Strongest verdict
- Not Recommended
- Its verdict for pregnancy, the profile this one is worst in
- Profiles flagged
- 5 of 6
- Counting avoid, high risk and medium risk
- Irritancy
- 1 of 5
- Higher means more likely to sting or redden
Sr-Oligopeptide-91 Clostridium Botulinum Polypeptide-1 and pregnancy
Not Recommended
- Absorbed into the body
- Fetal development
- Neural development
Sr-Oligopeptide-91 Clostridium Botulinum Polypeptide-1 is a synthetic peptide designed to mimic the effects of botulinum toxin by reducing muscle contractions and smoothing wrinkles. It is marketed as a topical alternative to injectable Botox. According to ACOG, injectable botulinum toxin is classified as FDA Pregnancy Category C, meaning animal studies have shown adverse effects and there are no adequate human studies. While this topical peptide is not identical to the injectable form, it is specifically designed to have botulinum-like effects on neuromuscular function. The concern is that if the peptide penetrates the skin and reaches systemic circulation, it could theoretically affect fetal neural development. There are no studies on the use of this ingredient during pregnancy, and the mechanism of action raises theoretical concerns about neurotoxic effects. Most dermatologists and obstetricians recommend avoiding ingredients designed to mimic neurotoxins during pregnancy due to the unknown risks and lack of safety data. The precautionary principle applies here: while topical absorption may be limited, the potential for neural effects makes this ingredient best avoided during pregnancy.
Sr-Oligopeptide-91 Clostridium Botulinum Polypeptide-1 and breastfeeding
Not Recommended
- Passes into breast milk
- Infant exposure
This peptide is designed to have botulinum-like effects on reducing muscle activity. Injectable botulinum toxin is not recommended during breastfeeding due to theoretical concerns about toxin transfer to milk, though actual transfer has not been documented. There are no studies on whether this topical peptide or its metabolites can enter breast milk. Given that the ingredient is specifically designed to mimic neurotoxin activity, and peptides can potentially be absorbed systemically depending on their molecular weight and formulation, the theoretical risk of transfer to milk cannot be ruled out. The AAD notes that injectable botulinum toxin use during breastfeeding should be discussed with a healthcare provider due to limited safety data. Most dermatologists recommend postponing use of neurotoxin-mimicking ingredients until after weaning due to the unknown safety profile and the theoretical risk of infant exposure. While topical application is less concerning than injection, the lack of breastfeeding safety data and the ingredient's mechanism of action warrant caution.
Sr-Oligopeptide-91 Clostridium Botulinum Polypeptide-1 and postpartum
Caution Advised
Sr-Oligopeptide-91 Clostridium Botulinum Polypeptide-1 can be used by postpartum women who are not breastfeeding for its anti-aging benefits. The ingredient works by reducing muscle contractions that contribute to expression lines and wrinkles. While the ingredient is generally considered safe for cosmetic use in non-pregnant, non-breastfeeding adults, its safety profile is less established than many traditional anti-aging ingredients. Women who are postpartum but not breastfeeding can use this ingredient, though those with sensitive skin or concerns about newer cosmetic technologies may prefer more established alternatives.
Sr-Oligopeptide-91 Clostridium Botulinum Polypeptide-1 and trying to conceive
Caution Advised
- Absorbed into the body
Women trying to conceive should consider avoiding this ingredient as a precautionary measure. While topical use is likely less concerning than injectable botulinum toxin, the ingredient is designed to have neurotoxin-like effects and lacks safety data in preconception periods. Many doctors recommend discontinuing products with uncertain safety profiles when actively trying to conceive, particularly those that mimic drug-like effects. Given the lack of data and the ingredient's mechanism of action, women TTC may prefer to switch to well-studied anti-aging ingredients.
Sr-Oligopeptide-91 Clostridium Botulinum Polypeptide-1 and PCOS
Safe to Use
Sr-Oligopeptide-91 Clostridium Botulinum Polypeptide-1 is a peptide that works on neuromuscular function to reduce wrinkle formation. It has no hormonal activity and does not interact with androgen or insulin pathways. There is no mechanism by which this ingredient would affect PCOS symptoms or hormone balance. It functions purely at the level of muscle relaxation and does not influence sebum production, inflammation, or hormonal acne. Women with PCOS can use products containing this ingredient without concern for hormonal interference. However, it does not address PCOS-related skin concerns such as acne or oiliness, so other targeted ingredients may be more beneficial.
Sr-Oligopeptide-91 Clostridium Botulinum Polypeptide-1 and general use
Caution Advised
- Absorbed into the body
Sr-Oligopeptide-91 Clostridium Botulinum Polypeptide-1 is a synthetic peptide used in anti-aging skincare as an alternative to injectable botulinum toxin. It works by reducing muscle contractions that lead to expression lines and wrinkles. The ingredient is generally well-tolerated and has minimal irritation potential. However, comprehensive long-term safety data is limited compared to more established cosmetic ingredients. The extent of skin penetration and potential for systemic effects with regular use are not fully understood. Some dermatologists express caution about ingredients designed to mimic neurotoxins, even in topical form. For the general public, this ingredient can be used in cosmetic products, but consumers should be aware that it represents a newer technology with less established safety data than traditional anti-aging ingredients. Those with concerns about synthetic peptides or newer cosmetic technologies may prefer more studied alternatives.
Everything else flagged for the same profiles
Related ingredients
Ingredients suggested in place of Sr-Oligopeptide-91 Clostridium Botulinum Polypeptide-1, 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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