KMS lists this shampoo for all hair types, but it is built for fine to medium hair that lacks volume, looks very thin, or breaks easily. If your hair falls flat within hours of washing or feels limp and fragile, that is the problem it is designed around.

It is a regular wash-day shampoo that needs no special technique, so it suits home use as well as salon backbar use (the 25.3 oz / 750 ml size is the practical choice for a salon or a household that goes through shampoo quickly).

It is a less natural fit for thick, coarse or very dry hair that needs heavy moisture; that hair type is better served by a moisture-focused shampoo.

Fine hair often goes flat because heavier shampoos leave behind silicones or oils. This one leaves those out and uses rice water, which KMS highlights for its amino acid content, to add body and help fragile strands feel stronger. The result KMS describes is instant lift at the root and hair that looks and feels fuller, which gives your styling products a better starting point instead of working against residue.

1. Apply to wet hair and work into a lather.
2. Rinse thoroughly.
3. Repeat if necessary.
4. Follow with a conditioner or treatment.

Pros

• No silicones, mineral oils or PEGs, which are the ingredients most likely to weigh fine hair down.
• Conditioning comes from lightweight agents (a cationic guar and panthenol), so hair isn't left squeaky after washing.
• Rice water adds amino acids, which KMS ties to strengthening fine, fragile strands.
• Two sizes, including a 25.3 oz (750 ml) bottle for salons or frequent use.

Cons

• "Sulfate-free" here refers to SLS and SLES only; the formula still uses sodium C14-16 olefin sulfonate, an anionic cleanser.
• Contains fragrance plus limonene and linalool, which matters if your scalp reacts to fragrance.
• Aimed at volume, not deep moisture; very dry or coarse hair may want something richer.