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Sulfate Free Shampoo for Thick Hair
Short answer: we found 9 products that pass. Good ones to start with: Amika Forget Frizz Anti-Frizz Shampoo, Amika Hydro Rush Intense Moisture Shampoo Moisturizing Shampoo, Bounce Curl Pure Silk Moisturizing Shampoo. Every shampoo here has no sulfates, and its own page says it's made for thick, coarse or medium-to-thick hair. These tend to be richer formulas with more slip.
9 products · last checked 2026-10-25
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All 9 products
| Product | Main cleansers | Fragrance-free? | Source |
|---|---|---|---|
| Amika Forget Frizz Anti-Frizz Shampoo | Cocamidopropyl betaine, Sodium cocoyl isethionate (SCI) | No | Brand page |
| Amika Hydro Rush Intense Moisture Shampoo Moisturizing Shampoo | Coco-glucoside, Sodium cocoyl isethionate (SCI) | No | Brand page |
| Bounce Curl Pure Silk Moisturizing Shampoo | Cocamidopropyl betaine, Disodium laureth sulfosuccinate | No | Brand page |
| Kerarganic KERATIN SHAMPOO MAINTENANCE | see list | Yes | Brand page |
| Olaplex Nº.4 Bond Maintenance™ Strengthening Shampoo | Decyl glucoside, Sodium lauroyl methyl isethionate | No | Brand page |
| OUAI Thick Hair Shampoo | Sodium C14-16 olefin sulfonate, Cocamidopropyl betaine | No | Brand page |
| Pacifica Coco Peptide Damage Care Shampoo | Cocamidopropyl betaine, Coco-glucoside | No | Brand page |
| Rahua Hydration Shampoo | Cocamidopropyl betaine, Sodium cocoyl isethionate (SCI) | No | Brand page |
| Verb Glossy Shampoo | Sodium lauroyl methyl isethionate | No | Brand page |
Questions
Do people with thick hair need more shampoo?
Usually only a little more, worked into the scalp rather than the lengths. Brands often suggest a second wash on very thick hair.
What is the best sulfate free shampoo for thick hair?
There's no single best one. All 9 listed here have no sulfates on the ingredient list, and the brand describes each as suited to this use. Start with the ones checked on the brand page, then compare cleansers and fragrance.
How do I know a shampoo is really sulfate-free?
Read the ingredient list, not the front label. Look for any ingredient ending in 'sulfate' (lauryl, laureth, coco-sulfate and so on). Sulfonates and sulfosuccinates are different ingredients.
Do you test these products?
No. We check ingredient lists and what the brand says the product is for, not how it performs.