Biolage Volume Bloom Shampoo: What You Need to Know

Biolage Volume Bloom is Matrix’s (a professional L’Oréal-owned brand) volumizing shampoo for fine hair, part of a system that also includes a matching conditioner and a root-lifting spray. Here’s what’s in the formula and what to make of the brand’s own performance claim.

The formula, honestly assessed

Unlike some “clean beauty” volumizing shampoos, Volume Bloom uses classic sulfates — sodium laureth sulfate and sodium lauryl sulfate — as its primary cleansers. These are effective, well-studied surfactants that produce a thorough, satisfying lather; the trade-off, as with any sulfate-based formula, is a higher chance of dryness or irritation for people with a sensitive or already-compromised scalp.

It also contains a small amount of dimethicone, a lightweight silicone. That might sound counterintuitive for a volumizing product — heavier silicones are one of the classic culprits behind flat, weighed-down hair — but a small amount is generally used here for shine and manageability rather than heavy conditioning, and the formula is designed to be paraben-free and suitable for color-treated hair.

The volumizing action itself leans on hydrolyzed soy protein, the same category of ingredient used across most protein-based volumizing shampoos: a temporary, cosmetic plumping effect on the hair shaft that washes out with the next shampoo.

About the “70% more volume” claim

Worth knowing: Biolage cites a clinical result of measurably more volume after a single application when the full Volume Bloom system (shampoo, conditioner, and a root-lift product) is used together, compared with unwashed hair. That’s worth reading carefully: it’s the brand’s own testing, it measures the full three-step system rather than the shampoo alone, and the comparison point is unwashed hair rather than a different shampoo. It’s a reasonable indicator that the system does what it’s designed to do, but it isn’t independent, head-to-head evidence that this shampoo outperforms other volumizing formulas.

Who this suits

A solid option for fine, color-treated hair where you want a professional-brand formula with a genuine root-lift component, and where sulfates aren’t a concern for your scalp. It’s a poor match if you’re specifically trying to avoid sulfates — see our sulfate-free shampoo guide for gentler alternatives — or if you’re dealing with genuine hair thinning rather than hair that simply lacks body, in which case our volumizing shampoo guide explains that distinction in more depth.

Getting the most from it

Like any volumizing shampoo, performance depends heavily on how you use it. Pairing it correctly with its matching conditioner — applied only from mid-length to ends, never at the roots — matters more than any single ingredient. Our thickening shampoo and conditioner guide walks through the full application technique.