B1 is classified as "works on your skin" in skincare formulations. Works on your skin.
Is B1 safe for sensitive skin?
B1 is generally well-tolerated and has no specific concern flags in our database. As with any ingredient, patch-test if you have highly reactive skin.
What products contain B1?
1 product in our database contains B1. The highest-rated is alvityl vitamines scoring 5.7/9.8.
Can I use B1 every day?
Many actives are best introduced gradually — start with 2-3 times per week and increase as your skin adapts. Strong actives like retinoids are often best used at night.
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