Hair Building Fibers Keratin Thicker Anti Hair Loss Products Concealer Refill Thickening Fiber Hair Powders GrowthOverview Adapt to the symptoms: Various types of hair loss. Including seborrheic alopecia, alopecia areata, and postpartum alopecia, both male and female patients can be used. 1. Organize your hair well. The hair must be dry before use. Do not use any styling agents. 2. Open the jar, tilt the net mouth down at a 45 degree angle, and gently shake it in the thinning part to make the fiber slide evenly onto the hair until the scalp is not visible. 3.