How to Use Biotin Hair Oil Safely and Effectively
Biotin hair oil is applied as a small pre-shampoo treatment to the scalp, mid-lengths, and ends, then washed out after 15-60 minutes. Use 2-8 total drops at first, massage gently for up to five minutes, and choose the carrier oil according to hair thickness, scalp oiliness, and sensitivity. Key Facts Topical biotin has limited evidence […]