Quick answer

Use a quarter-sized amount of CASSETTE Curl Defining Shampoo for short to medium hair, and a half-dollar-sized amount for long or thick curls. Focus the lather on your scalp, not the lengths, to preserve curl shape.

Why amount matters for curl definition

Too much shampoo strips natural oils and leaves curls frizzy; too little leaves buildup that weighs curls down. CASSETTE is designed to gently cleanse while maintaining and defining curl shape, so the right amount helps it do its job without over-cleansing.

Adjusting for hair density and length

Fine or short hair needs less product—start with a dime-sized amount and add more only if the lather doesn’t spread. Thick, long, or very curly hair may need two applications: the first to loosen buildup, the second to cleanse.

Step-by-step CASSETTE wash routine

  1. 1. Pre-detangle and wet thoroughly: Brush or comb curls gently with conditioner or water before washing, then rinse with warm water for at least 30 seconds to remove surface debris. Skipping this step leads to tangles and uneven cleansing.
  2. 2. Measure the right amount: For short to medium hair, use a quarter-sized amount; for long or thick hair, use a half-dollar-sized amount. Start with less—you can always add more. Using too much from the start can strip curls and cause frizz.
  3. 3. Apply to scalp only: Pour shampoo into your palm, rub hands together, and massage into the scalp with fingertips—not nails—working from hairline to crown. Applying directly to lengths can rough up the cuticle and reduce definition.
  4. 4. Let the lather travel: As you rinse, the lather will move through the lengths, gently cleansing without extra scrubbing. Avoid piling hair on top of your head. Piling hair causes tangles and disrupts curl pattern.
  5. 5. Rinse and repeat only if needed: Rinse until water runs clear. If hair still feels coated or you used styling products, repeat with half the amount. Over-washing strips natural oils; one wash is enough for most.
  6. 6. Follow with conditioner: Squeeze excess water from hair, then apply a curl-friendly conditioner from mid-lengths to ends. Detangle with fingers or a wide-tooth comb. Skipping conditioner makes curls prone to breakage and frizz.

Product facts