Viviscal Hair Thickening Serum 1.69 fl oz — Leave-In Lightweight Elixir with Keratin & Biotin

Viviscal Hair Thickening Serum is a lightweight leave-in elixir that coats each strand to create the appearance of thicker, fuller hair without weighing it down.

This salable salon-style serum combines proven hair-building ingredients like Biotin and Keratin with Marine Collagen and Seaweed extract to add multi-dimensional density and smoothness. Designed for everyday use, the non-greasy formula helps reduce the look of fine, limp hair and is free of parabens, SLS and SLES. Use it on damp or dry hair as part of a styling routine, and pair with Viviscal supplements for comprehensive hair support.

How does this serum make hair look thicker right away?

The serum deposits a lightweight coating around individual strands to increase diameter and optical fullness immediately after application. It doesn’t create crunch or residue, so hair keeps natural movement and shine.

• Coats strands to enhance visual thickness and texture
• Light, non-sticky formula maintains natural bounce
• Applies smoothly through mid-lengths and ends for even coverage

Which active ingredients are included and why do they matter?

Viviscal combines Biotin and Keratin—two commonly used hair building blocks—with Marine Collagen and Seaweed extract to support strand strength and surface condition. These actives help improve the look and feel of hair when used regularly as part of a care routine.

• Biotin: supports healthier-looking hair texture
• Keratin: helps smooth and reinforce the hair cuticle
• Marine Collagen & Seaweed: add hydration and surface conditioning

How should I use this leave-in for best results?

Dispense 2–3 pumps into your palms and distribute from mid-lengths to ends on damp or dry hair. Work through with fingers or a wide-tooth comb, then style as usual—no rinsing required. For consistent improvement in appearance, incorporate it into your daily routine.

• Apply 2–3 pumps to palms, spread through mid-lengths and ends
• Use on damp hair before drying or on dry hair for touch-ups
• Suitable for everyday use without weighing hair down

Is this product suitable for my hair type and concerns?

The formula is crafted to work across a range of hair types, especially for those noticing reduced density or finer texture. It adds instant visual volume while remaining lightweight, making it helpful for people who want fuller-looking hair without heavy styling products.

• Works well on fine, thinning, or medium-texture hair
• Non-greasy finish fits both straight and wavy styles
• Paraben-free and free from SLS/SLES for gentler daily use

Who this is for: Viviscal Hair Thickening Serum is intended for anyone seeking a simple leave-in step to boost the look of hair thickness—especially those experiencing finer strands, early changes in density, or anyone who wants extra-bodied, frizz-controlled hair without heavy styling products. It pairs well with the Viviscal supplement range for a combined topical and nutritional approach to hair appearance.

Ingredients

Aqua (Water), Alcohol Denat., Polysorbate 20, Benzyl Alcohol, Alcohol, Hydroxyethylcellulose, Polyimide-1, Parfum (Fragrance), Chlorphenesin, Soluble Collagen, Dehydroacetic Acid, Pisum Sativum Sprout Extract, Hydrolyzed Keratin, Glycerin, Trisodium Ethylenediamine Disuccinate, Chondrus Crispus (Carrageenan) Extract, Fucus Vesiculosus Extract, Laminaria Digitata (Kelp) Extract, Sea Salt (Maris Sal), Leuconostoc/Radish Root Ferment Filtrate, Biotin, Phenoxyethanol, Potassium Sorbate, Sodium Benzoate, Linalool, Hexyl Cinnamal, Limonene, Citronellol, Eugenol.