The maximum daily dose of Vitamin B5 in SkinB5 acne control products is 2g (taking 4 Extra Strength Tablets a day) which is a level recommended by naturopaths - potential hair loss has been reported by users taking Vitamin B5 at 10+g a day.
In fact, ingredients in skinB5's powerful nutritional formulas, eg. biotin, can actually help strengthen hair health and growth. We have thousands of people using skinB5 without any hair issues, some even reported that their hair and nails grow faster.
We do note that stress and hormonal changes could lead to hair loss.