Viviscal Thickening Shampoo: The Complete Guide
Viviscal is best known for its oral hair-growth supplements — but the brand also sells a Thickening Shampoo, and it’s worth being clear that the two products are not the same thing, backed by different (and very different-sized) bodies of evidence.
The formula
Viviscal Thickening Shampoo uses ammonium lauryl sulfate as its primary cleanser — a sulfate, though a different one than the more commonly discussed sodium lauryl or laureth sulfate — paired with gentler co-surfactants. The formula is built around what the brand calls “hair building blocks”: biotin and hydrolyzed keratin, fortified with marine collagen and seaweed extract (including carrageenan and fucus vesiculosus).
Worth knowing: Viviscal’s own product information is refreshingly direct on this point: no regular shampoo can stimulate new hair growth. The shampoo is positioned as creating a cleaner scalp environment and reducing breakage — both genuinely useful, cosmetic-level goals — while the brand’s hair-growth claims are reserved for its oral supplements, which sit on a separate and more substantial evidence base than the shampoo does.
Don’t confuse the shampoo with the supplement’s reputation
Viviscal’s oral supplements have their own body of research behind them (with the usual caveats that apply to any supplement evidence base). It’s easy to see the Viviscal name on a shampoo bottle and assume it carries the same weight — it doesn’t. The shampoo works the same way most biotin-and-protein volumizing shampoos do: temporary cosmetic plumping and reduced breakage, not new growth. See our biotin shampoo guide for the fuller picture on why that distinction matters.
Who this suits
A reasonable, paraben-free option if you want a thickening shampoo with a marine-ingredient profile and don’t mind a sulfate-based cleanser. If you’re specifically hoping the shampoo alone will meaningfully treat hair loss, recalibrate that expectation — and if what you’re dealing with is genuine progressive thinning, a dermatologist visit will tell you more than any shampoo or supplement label.
Frequently asked questions
Is Viviscal Thickening Shampoo the same as the Viviscal supplement?
No — they're different products with different evidence bases. The oral supplement has its own research behind it; the shampoo is a cosmetic, breakage-reducing product, and the brand itself states that no regular shampoo can stimulate new hair growth.
Does Viviscal shampoo contain sulfates?
Yes, it uses ammonium lauryl sulfate as its primary cleanser, paired with gentler co-surfactants — a sulfate-based formula, though not the more commonly discussed sodium lauryl or laureth sulfate.
Will Viviscal shampoo regrow hair on its own?
No. It's formulated to reduce breakage and add cosmetic thickness, not to regrow hair from follicles that have stopped producing it. For actual thinning, a dermatologist evaluation is the appropriate next step.