Products are split into three levels based on ingredient labels
function—of beauty
Straight Hair Shampoo
Last verified: March 4, 2026
- Water
- Sodium Lauroyl Methyl Isethionate
- Glycerin
- Sodium Methyl Cocoyl Taurate
- Peg-120 Methyl Glucose Dioleate
- Cocoamidopropyl Hydroxysultaine
- Sodium Methyl Isethionate
- Cocos Nucifera (Coconut) Fruit Juice
- Lauric Acid
- Acrylates Crosspolymer-4
- Trisodium Ethylenediamine Disuccinate
- Glycol Distearate
- Phenoxyethanol
- Sodium Chloride
- Propoxytetramethyl Piperidinyl Dimethicone
- Sodium Laurate
- Methyl Gluceth-10
- Caprylyl Glycol
- Chlorphenesin
- Potassium Sorbate
- Polyquaternium-7
- Trideceth-6
- C11-15 Pareth-7
- Ethylhexylglycerin
- Hexylene Glycol
- Guar Hydroxypropyltrimonium Chloride
- Hydroxypropyl Methylcellulose
- Sodium Benzoate
- Sodium Benzotriazolyl Butylphenol Sulfonate
- Citric Acid
- Fragrance
- Citral
- Citronellol
- Limonene
- Linalool
- Blue 1
- Red 33
Why This Product is Rated STOP
Straight Hair Shampoo by function—of beauty has been evaluated by Million Marker and contains ingredients with known health concerns. This product is rated STOP, indicating higher concern.
We recommend avoiding STOP-rated products and seeking safer alternatives from our GO or SLOW categories.
Frequently Asked Questions
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