SD Alcohol 40
Drying alcohol Not CG-friendly
A specially denatured ethanol used in hair sprays and some styling products to help them dry fast.
Curly Girl note: A denatured ethanol — drying when used high in the list.
How our checker rates it
| Mode | Rating | Why |
|---|---|---|
| Curly Girl | Avoid | Drying alcohol high in the list — can dry out curls. Not CG-friendly. |
| Relaxed hair | Caution | Drying alcohol high in the list — relaxed ends are already prone to dryness. |
| Low porosity | OK | No concerns for this mode. |
| 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 drying alcohol ingredients do
Short-chain alcohols that evaporate quickly. Useful for fast drying and dissolving other ingredients, but high amounts can dry hair out.
Also listed as
- sd alcohol 40-b
- sd alcohol 40b
- sd alcohol 40-a
- sd alcohol 40-c
Similar ingredients
Sources
Last data update:
- Cosmetic Ingredient Review (CIR). Ingredient safety assessments. Safety assessments for cosmetic ingredients cited on ingredient pages.
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