hers Full Volume Shampoo in Beauty: NA. hers Full Volume Shampoo in Beauty: NA. Give flat hair a boost and add volume with natural ingredients refined by science. Packed with BIOVOLUME 128™ , this formula is proven to help cuticles and boost volume. The result? More shine. More bounce. More volume.. Suitable for all hair types. Vegan and cruelty-free. Formulated without parabens and sulfates. 6.4 oz/ 190mL. Wet hair, lather, and gently massage into the scalp. Distribute from root to tip. Leave for 1 minute, then rinse thoroughly. HERR-WU24. FNP-VOLUMESHMP-6Z-01. hers was founded to fight stigmas around health and wellness issues and to break down barriers for women looking for an easier, more affordable alternative to traditional healthcare. Created with a medical advisory board of women doctors, hers is beauty and skincare that feels like self-care. That's why they offer premium, affordable products for women of all ages, without leaving home - hers has you covered.