Function of Beauty Straight Hair Shampoo XL 22 oz — Sulfate-Free, Coconut Water Hydrating

Function of Beauty Straight Hair Shampoo XL is a sulfate-free, coconut water–infused daily shampoo designed to gently cleanse and hydrate type 1 (straight) hair for a smoother, more manageable finish.

This 22 oz XL bottle delivers a lightweight, hydrating wash formulated specifically for straight hair textures. The blend centers on coconut water to replenish moisture without weighing down strands, while a signature Nude Peach fragrance offers a fresh, spa-like scent. The formula adheres to Function of Beauty's clean-beauty standards: vegan, sulfate-free, paraben-free, and cruelty-free.

How does this shampoo keep straight hair smooth without flattening it?

The formula balances hydration and lightweight feel so straight hair retains natural movement and shine. Instead of heavy oils or silicones that can sit on fine strands, it uses hydrating coconut water and gentle cleansers to refresh the hair and scalp.

• Lightweight coconut water hydrates without excess weight
• Sulfate-free surfactants clean gently to preserve natural volume
• Designed for daily use to maintain smoothness between washes

Will this shampoo work for color-treated straight hair?

The gentle, sulfate-free formulation is more color-friendly than harsh detergents, helping minimize premature color fade. While it's formulated to be kind to treated hair, pairing it with a color-protecting conditioner can further preserve vibrancy.

• Sulfate-free base reduces stripping of color molecules
• Hydrating ingredients help reduce dryness that accelerates fading
• Recommended to use with a complementary conditioner for extra protection

How should I incorporate this shampoo into my straight-hair routine?

Use it as your daily or regular cleansing step, lathering into wet hair and rinsing thoroughly. Follow with Function of Beauty Straight Hair Conditioner or a leave-in product for added slip and shine, and style as usual.

• Apply to wet hair, massage into scalp, rinse for gentle cleansing
• Pair with Straight Hair Conditioner to boost hydration and manageability
• Suitable for everyday use depending on oiliness and styling frequency

What sensory experience does this shampoo provide in the shower?

The shampoo delivers a lightweight, foaming cleanse with the brand’s Nude Peach fragrance—bright top notes of peach and lemon with subtle jasmine for a balanced scent. Texture is smooth and easy to distribute, creating a spa-like shower moment without heavy residue.

• Signature Nude Peach scent with citrus and floral accents
• Silky texture that spreads evenly for full coverage
• Rinses clean to leave hair ready for conditioning or styling

Who is this for? Function of Beauty Straight Hair Shampoo XL is intended for people with naturally straight (type 1) hair who want a gentle, hydrating daily cleanser that preserves movement and shine. It’s a strong choice for those seeking clean-beauty formulations—vegan and free from sulfates, parabens, and cruelty—plus anyone who prefers a larger 22 oz size to reduce refill frequency. If your hair is fine, chemically treated, or styled frequently, this shampoo provides lightweight moisture while being gentle enough to include in a consistent care routine.

Ingredients

WATER (AQUA/EAU), SODIUM LAUROYL METHYL ISETHIONATE, GLYCERIN, SODIUM METHYL COCOYL TAURATE, PEG-120 METHYL GLUCOSE DIOLEATE, COCAMIDOPROPYL HYDROXYSULTAINE, SODIUM METHYL ISETHIONATE, COCOS NUCIFERA (COCONUT) FRUIT JUICE, LAURIC ACID, ACRYLATES CROSSPOLYMER-4, TRISODIUM ETHYLENEDIAMINE DISUCCINATE, GLYCOL DISTEARATE, PHENOXYETHANOL, PROPOXYTETRAMETHYL PIPERIDINYL DIMETHICONE, SODIUM LAURATE, METHYL GLUCETH-10, CAPRYLYL GLYCOL, POTASSIUM SORBATE, POLYQUATERNIUM-7, TRIDECETH-6, C11-15 PARETH-7, ETHYLHEXYLGLYCERIN, HEXYLENE GLYCOL, GUAR HYDROXYPROPYLTRIMONIUM CHLORIDE, HYDROXYPROPYL METHYLCELLULOSE, SODIUM CHLORIDE, SODIUM BENZOATE, SODIUM BENZOTRIAZOLYL BUTYLPHENOL SULFONATE, BENZOIC ACID, DEHYDROACETIC ACID, CITRIC ACID, FRAGRANCE (PARFUM), CITRAL, CITRONELLOL, LIMONENE, LINALOOL, BLUE 1 (CI 42090), RED 33 (CI 17200)