Function of Beauty Straight Hair Shampoo & Conditioner XL Set — 22 oz Sulfate-Free Duo for Lightweight Hydration & Anti-Frizz Shin

Function of Beauty Straight Hair Shampoo & Conditioner XL Set is a sulfate-free, vegan duo formulated with coconut water and avocado oil to smooth, hydrate, and add lightweight shine to straight hair.

If you have naturally straight (type 1) hair and want a simple, effective routine, this XL pair from Function of Beauty is built to deliver manageable, frizz-reduced strands without heavy buildup. Each bottle contains 22 oz of product and the formulas are free from sulfates, parabens, and animal testing. The shampoo focuses on gentle hydration while the conditioner seals moisture and enhances natural gloss.

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

The shampoo uses coconut water to hydrate hair at the surface without leaving a heavy residue, while the conditioner uses avocado oil to lock in moisture selectively. Together they balance hydration and slip so strands lie flat and look polished without a greasy feel.

• Lightweight coconut water cleanses and refreshes the scalp.
• Avocado oil in the conditioner seals cuticles for shine and manageability.
• Sulfate-free surfactants avoid over-stripping natural oils.

Will this duo help control frizz and boost shine on straight hair?

Yes — the formula targets frizz by smoothing the hair surface and improving moisture retention, which reduces static and flyaways. The result is a more reflective, glossy appearance that lasts through daily styling.

• Cuticle-smoothing ingredients reduce light-scattering frizz.
• Moisture-locking conditioner enhances natural sheen.
• Designed for straight hair movement so shine looks natural, not oily.

Is this set safe for color-treated or oily scalps?

The sulfate-free formula is gentler for color-treated hair, helping preserve dye longer than harsh cleansers. For oily scalps, the lightweight cleansing action removes excess oil without over-drying, so roots feel cleaner while lengths stay hydrated.

• Sulfate-free chemistry helps retain color vibrancy.
• Gentle cleansing removes impurities from oily roots.
• Conditioner provides targeted moisture without heavy residue at the scalp.

How do I use the shampoo and conditioner together for best results?

Start by applying the shampoo to wet hair and massage into the scalp to lift oil and buildup, then rinse fully. Follow with conditioner from mid-lengths to ends, leave on briefly, then rinse for sealed, smooth strands. For customization, add up to three Hair Goal Boosters (sold separately) to your routine.

• Shampoo: lather at roots, rinse thoroughly to avoid buildup.
• Conditioner: focus on mid-lengths and ends; avoid heavy application at roots.
• Optional: mix in Hair Goal Boosters for extra hydration, strength, or volume.

Who is this for: This XL shampoo and conditioner set is made for people with naturally straight hair who want a lightweight, hydrating routine that tames frizz and enhances natural shine. It’s suitable for those with color-treated or oil-prone scalps seeking gentle cleansing, and for anyone who prefers clean-beauty formulas that are vegan, cruelty-free, and free of sulfates and parabens. Choose this set if you like salon-level manageability without heavy oils, and prefer a pleasant Nude Peach fragrance for a refreshing shower experience.

Ingredients

STRAIGHT HAIR SHAMPOO: 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) STRAIGHT HAIR CONDITIONER: WATER (AQUA/EAU), CETYL ALCOHOL, BEHENTRIMONIUM CHLORIDE, BEHENYL ALCOHOL, CETEARYL ALCOHOL, GLYCERIN, QUATERNIUM-87, PERSEA GRATISSIMA (AVOCADO) OIL, BUTYROSPERMUM PARKII (SHEA) BUTTER UNSAPONIFIABLES, HELIANTHUS ANNUUS (SUNFLOWER) SEED OIL, HYDROLYZED VEGETABLE PROTEIN, COCOS NUCIFERA (COCONUT) OIL, COCOS NUCIFERA (COCONUT) FRUIT EXTRACT, ROSMARINUS OFFICINALIS (ROSEMARY) LEAF EXTRACT, CAPRYLOYL GLYCERIN/SEBACIC ACID COPOLYMER, CETEARETH-20, PHENOXYETHANOL, DIHEPTYL SUCCINATE, PROPYLENE GLYCOL, PROPOXYTETRAMETHYL PIPERIDINYL DIMETHICONE, DIMETHICONOL MEADOWFOAMATE, CAPRYLYL GLYCOL, POTASSIUM SORBATE, SOYBEAN GLYCERIDES, GUAR HYDROXYPROPYLTRIMONI- UM CHLORIDE, TRIDECETH-6, PANTHENYL ETHYL ETHER, DISODIUM EDTA, HEXYLENE GLYCOL, PHOSPHOLIPIDS, C11-15 PARETH-7, PEG-60 HYDROGENATED CASTOR OIL, PHENETHYL ALCOHOL, SODIUM BENZOTRIAZOLYL BUTYLPHENOL SULFONATE, SODIUM BENZOATE, ASCORBYL PALMITATE, CITRIC ACID, FRAGRANCE (PARFUM), CITRAL, CITRONELLOL, LIMONENE, LINALOOL, ISOPROPYL ALCOHOL, GREEN 5 (CI61570), VIOLET 2 (CI 60730)