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LJ HairLab

Dimethiconol

Non-soluble silicone Not CG-friendly Heavy

A silicone similar to dimethicone with hydroxyl end groups, often used as a thick gum for intense smoothing in conditioners and serums.

Curly Girl note: Not water-soluble and often used as a heavy gum.

How our checker rates it

ModeRatingWhy
Curly Girl Avoid Non-soluble silicone — builds up unless you wash with sulfates. Not CG-friendly.
Relaxed hair Good Silicone — coats the strand and helps protect relaxed hair from heat and friction.
Low porosity Caution Heavy ingredient near the top of the list — can sit on low-porosity hair and build up.
Protein-sensitive OK No concerns for this mode.

Ratings assume it is listed near the top of the label. After the first preservative or fragrance (likely 1% or less) most cautions soften.

What non-soluble silicone ingredients do

Silicones that coat the strand for slip, shine and heat protection but do not rinse out with water, so they can build up without a sulfate or clarifying wash.

This one is on the heavy side, so it can weigh down fine or low-porosity hair if it sits near the top of a product’s list.

Also listed as

  • dimethiconol gum
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Similar ingredients

Sources

Last data update:

  1. Cosmetic Ingredient Review (CIR). Ingredient safety assessments. Safety assessments for cosmetic ingredients cited on ingredient pages.

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