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

Function of Beauty Straight Hair Shampoo XL is a sulfate-free daily cleanser formulated with coconut water to gently hydrate and smooth straight hair.

Designed for type 1 (straight) hair, this 22 oz bottle offers a gentle, lightweight wash that removes dirt and buildup without stripping natural oils. The formula focuses on moisture balance and manageability, delivering a sleek finish while preserving natural volume. It’s free from sulfates, parabens, and animal testing, and is scented with a signature Nude Peach blend for a fresh shower experience.

How does this shampoo keep straight hair smooth without weighing it down?

The formula uses hydrating coconut water and mild surfactants to lift impurities while maintaining hair body. That balance helps hair lie flat and appear sleek without feeling limp or greasy.

• Mild, sulfate-free cleansers that remove buildup gently
• Coconut water to replenish hydration without heavy oils
• Lightweight conditioning agents that support slip and detangling

Can I use this daily and still keep my natural volume?

Yes—this shampoo is created for frequent use and retains natural volume by avoiding harsh detergents and heavy silicones. It refreshes the scalp and strands so hair looks clean and full between washes.

• Daily-safe, non-stripping surfactants suitable for regular routines
• Formula minimizes flatness while smoothing the hair cuticle
• Pair with the Straight Hair Conditioner for balanced results

What does the scent smell like and does it linger?

The Nude Peach fragrance blends peach nectar, bright lemon, and delicate jasmine for a light, spa-inspired aroma. The scent is noticeable in-shower and leaves a subtle, fresh finish on hair without overpowering.

• Top notes of zesty lemon for freshness
• Fruity peach heart for a warm, clean sweetness
• Soft jasmine accents for a floral lift

What standards and ingredients should I expect from Function of Beauty?

Function of Beauty emphasizes clean, cruelty-free formulations with effective, naturally derived ingredients. This shampoo avoids sulfates and parabens and is vegan-friendly, reflecting a commitment to high product standards and transparent hair type solutions.

• Vegan formula, never tested on animals
• Free from sodium lauryl sulfate and parabens
• Designed specifically for straight hair types (type 1)

Who is this for: Function of Beauty Straight Hair Shampoo XL is aimed at people with naturally straight hair seeking a gentle, everyday cleanser that smooths and hydrates without sacrificing volume. It’s a good match for anyone who prefers sulfate-free, vegan formulations and enjoys a light, fruity-floral scent. For best results, use alongside the Straight Hair Conditioner to enhance shine, manageability, and long-lasting softness.

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)