Niacinamide Serum

• WaterSolvent
• NiacinamideSkin Conditioning, Hair Conditioning, Smoothing

  Ingredient Notes

  Niacinamide is a B vitamin, but not one of the B vitamins linked to Malassezia. Growth work names thiamine (B1) and pyridoxine (B6) as increasing growth alongside a lipid, without being required for it. Thiamine is not food for the yeast: it speeds the step that turns an amino acid into the carbon skeleton it uses, and supplying that skeleton directly removes the need for thiamine entirely. B3 is not named in any of that work. We rate niacinamide safe on that evidence rather than treating the whole B group as one risk, and nothing we hold shows it treats fungal acne either.

  EWG1

  CIRS

  References

  • https://doi.org/10.1007/978-3-642-03616-3_4
  • https://doi.org/10.3181/00379727-58-14895
  • https://doi.org/10.1007/s004030050304
  • https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5605215/
  • https://onlinelibrary.wiley.com/doi/abs/10.1111/dth.12481
  • https://pubmed.ncbi.nlm.nih.gov/25399625/
  • https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3724370/
• Dipropylene GlycolSolvent, Masking, Fragrance, Viscosity Controlling, Viscosity Decreasing Agent
• GlycerinSolvent, Perfuming, Fragrance, Humectant, Viscosity Decreasing Agent, Hair Conditioning, Skin Protecting, Denaturant

  Ingredient Notes

  In a lab study, Malassezia was unable to grow on glycerin without the presence of fatty acids in the agar, indicating that it is not a fungal acne trigger.

  EWG2

  CIRS

  References

  • https://pubchem.ncbi.nlm.nih.gov/compound/Glycerol
  • https://www.ncbi.nlm.nih.gov/pubmed/18510666
  • https://www.ncbi.nlm.nih.gov/pubmed/11301638
  • https://www.mdpi.com/2079-9284/6/3/45
  • https://www.ncbi.nlm.nih.gov/pubmed/29737895
  • https://www.ncbi.nlm.nih.gov/pubmed/4128616
  • https://www.ncbi.nlm.nih.gov/pmc/articles/PMC118058/
  • https://www.sciencedirect.com/science/article/pii/S0022202X15498574
  • http://en.cnki.com.cn/Article_en/CJFDTOTAL-ZHYY201307007.htm
  • https://pubmed.ncbi.nlm.nih.gov/25134312/
  • https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5137500/
• 1,2-HexanediolSolvent
• BetaineSkin Conditioning, Humectant, Viscosity Controlling, Antistatic Agent, Hair Conditioning
• Tocopherol (Vitamin E)CautionAntioxidant, Fragrance, Skin Conditioning, Occlusive,

  Ingredient Notes

  Depending on the source, Tocopherols may be UNSAFE. The Synthetic versions without trace amounts of soybean oil are okay. Patch testing recommended.

  EWG1

  CIRS

  References

  • https://pubchem.ncbi.nlm.nih.gov/compound/Vitamin-E
  • https://www.cosmeticsinfo.org/ingredient/tocopherol
• Hydrogenated LecithinSkin Conditioning, Surfactant, Emulsifying, Suspending Agent- Nonsurfactant
• Xanthan GumSkin Conditioning, Viscosity Controlling, Viscosity Increasing Agent, Emulsion Stabilising, Binding Agent, Binding, Surfactant -Emulsifying Agent, Gel Forming
• Sorbitan IsostearateFungal Acne TriggerSurfactant - Emulsifying Agent

  May cause fungal acne (Malassezia folliculitis) breakouts.

  EWG1

  CIRS
• Diphenyl DimethiconeSkin Conditioning, Emollient, Emulsifying, Hair Conditioning, Antifoaming Agent
• TriethylhexanoinSolvent, Skin Conditioning, Masking, Emollient, Fragrance, Antistatic Agent, Hair Conditioning, Refatting
• Polyglyceryl-10 OleateFungal Acne TriggerSkin Conditioning, Surfactant, Emulsifying

  May cause fungal acne (Malassezia folliculitis) breakouts.

  EWG1

  CIRSQ
• Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate CopolymerViscosity Controlling, Emulsion Stabilizing
• EthylhexylglycerinSkin Conditioning, Deodorant
• Polysorbate 60Fungal Acne TriggerSurfactant, Emulsifying

  May cause fungal acne (Malassezia folliculitis) breakouts.

  EWG3

  CIRSQ

Packaging and formulations can change. Always verify the live box, bottle, or retailer ingredient list before use.