Product overview

Everything worth knowing.

A detailed, evidence-led view of the product—not a generic sales summary.

What Is It: Viviscal Hair Thickening Serum is a lightweight leave‑in treatment that instantly coats each hair strand to create multi‑dimensional density for thicker, fuller‑looking hair while taming frizz. It is formulated with Biotin and Keratin, and fortified with Marine Collagen and Seaweed extract. Key Benefits: Instantly coats hair strands to create the appearance of thicker, fuller‑looking hair with added multi‑dimensional density. Lightweight leave‑in formula that does not weigh hair down, is easy to apply and suitable for everyday use. Contains Biotin, Keratin and Marine Collagen, together with Seaweed extract, to coat strands and enhance visible density. Tames frizz to deliver smoother‑looking hair without compromising lightness or movement. How To Use: Apply 2–3 pumps (depending on hair length) onto palms and disperse through mid‑lengths and ends of damp or dry hair using fingers or a comb; alternatively, use as a styling aid on dry hair as required. Suitable for everyday use. Key Ingredients: Key actives include the hair‑building blocks Biotin and Keratin, together with Marine Collagen; these ingredients are formulated to coat each strand and create multi‑dimensional density for thicker, fuller‑looking hair. Verified details include volume of 50ml.