Aimed at salon professionals prepping a client's hair before a chemical service, especially clients with heavy well or hard-water exposure, frequent swimming, or visible styling-product buildup, so the following colour or texture service processes more evenly. Also relevant for a client whose hair feels dull, coated, or resistant to product and needs a reset before anything else is done to it.

The single-sachet format exists because chelating treatments need a specific, consistent ratio of crystals to water to gel properly and work as intended - a pre-measured packet removes the guesswork of scooping bulk powder. The underlying reason to use it at all is that ordinary shampoo doesn't fully clear mineral and product buildup sitting on the hair shaft, and leaving that buildup in place is a common reason colour and other chemical services process unevenly or fade faster than expected.

Shampoo the hair first with a clarifying shampoo. Empty the sachet's crystals into a mixing jar or applicator bottle with about 2 oz of warm water, cap it, and shake until the powder turns into a gel. Section clean, towel-dried hair and work the gel from scalp to ends with firm pressure using palms and fingertips so each section is fully saturated. Flat-wrap the hair, cover with a processing cap, and expose to heat; processing generally falls somewhere in a 15-45 minute range depending on how much buildup is present - lighter buildup toward the shorter end, heavy mineral or product deposits toward the longer end. Afterward, shampoo thoroughly again to rinse out the gel and any loosened residue.

Pros:

• Single-dose sachet gives a consistent, pre-measured amount instead of hand-scooping bulk powder
• Chelating action targets mineral and product buildup that ordinary shampoo doesn't fully clear
• Prepares hair to take colour or chemical services more evenly by clearing interfering deposits first

Cons:

• Requires mixing with water plus a wrap-and-process step, not a quick rinse-and-go treatment
• Processing time varies by buildup level, so results depend on judgment at the chair
• Not a stand-alone conditioning step; hair still needs shampooing again afterward