Trained hairdressers and colourists, and experienced home colourists already familiar with professional tube-and-developer systems, who want to formulate a specific level/tone (black through very light blonde, in neutral, ash, gold, copper, mahogany, red or violet reflects) and achieve full grey coverage. This is not a beginner, single-step home dye kit — a separate Dikson oxidizing developer, mixing equipment, and technique (sectioning, timing by developer volume) are required, and a 48-hour patch test is mandatory before each use.

Dikson's central technical claim is molecular pigment size and load: the brand states its dye molecules are smaller and more concentrated than many competing lines, which is why any of its shades can reach full grey coverage with a 20 volume developer rather than needing a separate dedicated grey-coverage series. Combined with a capped 2% ammonia level, that gives a colourist one versatile line to formulate most levels and tones from rather than switching between several product families.

In a non-metallic bowl, mix Dikson Color 1:1 with Dikson oxidizing developer (equal parts by volume) — Dikson's technical guide specifies this 1:1 ratio for its 4 oz/120ml tube size. Choose developer strength based on the result needed: 10 volume for deposit-only colour/grey blending (about 30 minutes), 20 volume for 1-2 levels of lift with resistant grey coverage (about 35 minutes), 30 volume for 2-3 levels of lift (about 40 minutes), or 40 volume for 3-4 levels of lift (about 45 minutes). On virgin hair, apply from about 2 cm out from the scalp to the ends first, then apply to the remaining root area; for a retouch, apply to new growth first and pull the mixture through the lengths for the final few minutes. Always run a 48-hour skin allergy test before colouring, wear gloves, and follow with an acidic/clarifying shampoo to reseal the cuticle. This is a professional-style service that a colourist should perform or supervise.

• Pro: 2% or less ammonia — less cuticle swelling/damage than many higher-ammonia permanent colours
• Pro: Any shade in the range reaches full grey coverage when mixed with 20 volume developer, per Dikson's technical guide
• Pro: Choice of 10/20/30/40 volume developer lets the colourist match processing strength to the level of lift needed
• Con: Requires a separately purchased Dikson developer and accurate 1:1 mixing/measuring — not a self-contained home kit
• Con: Correct results depend on professional technique (sectioning, correct developer choice, timing); mismatched developer or timing can cause uneven colour or hair damage
• Con: A 48-hour allergy/patch test is required before every application, an extra step versus no-mix demi/semi colour