Penzi states you shouldn't be worried about using it alongside other products Which may be in your haircare schedule. Girls's Health and fitness may well make Fee from the links on this web page, but we only function products we believe in. Why Have confidence in Us? my hair grew https://allhealthmarket.com/product/health-and-beauty-2/hair-care/biotin-hair-oils-for-hair-growth-anti-breakage-hair-growth-and-collagen-for-natural-hair-growth-anti-hair-loss/