VITAMINS hair cosmetics Keratin Hair Serum with Biotin, Castor Oil & Collagen — 4.25 fl oz | Anti-Frizz Heat Protectant & Shine

VITAMINS Keratin Hair Serum is a lightweight leave-in treatment that smooths frizz, protects from heat, and adds glossy shine for dry, damaged, or color-treated hair.

Born from an 80-year family salon formula, this concentrated 4.25 fl oz (125 mL) serum blends hydrolyzed keratin, biotin, collagen, castor oil, argan oil, and coconut oil into a multi-purpose styling ally. It is formulated to be non-greasy and minimally scented, designed for daily use on damp hair, as a heat protectant before high-temperature styling, or as a touch-up to tame flyaways. The product is sulfate-, paraben-, and alcohol-free and safe for chemically treated hair.

How will this serum help my hair routine on busy mornings?

Apply a few drops to damp hair to detangle, reduce drying time, and create a smooth base for styling. The lightweight formula layers easily under products like mousse or cream without leaving residue.

• Use 1–3 drops depending on hair thickness; distributes quickly from mid-lengths to ends.
• Helps reduce blow-dry time by sealing cuticles and improving heat conduction.
• Replaces separate leave-in, heat protectant, and anti-frizz finisher to streamline your routine.

Can it protect my hair from flat irons and blow dryers?

Yes — the serum acts as a heat protectant for styling tools up to 450°F, forming a protective layer around the strand. While it’s not a thermal insulator, the keratin and oils reduce direct damage and help preserve moisture during high-heat styling.

• Safe for use before blow-drying and flat-ironing up to 450°F.
• Applies as a thin, even coating to reduce surface friction from styling tools.
• Helps minimize split ends and breakage when used consistently before heat styling.

How does it handle humidity and frizz throughout the week?

The keratin-collagen matrix in the serum smooths each hair fiber and helps lock out moisture that causes frizz, so many users see several days of manageability after a single application. It delivers a glass-like shine while keeping hair soft rather than stiff.

• Forms a lightweight shield to resist humidity-driven swelling of the hair shaft.
• Tames flyaways and creates a polished surface that reflects light for shine.
• Non-sticky finish that won’t attract dust or weigh hair down when used sparingly.

Will this work on my hair type and color-treated locks?

The formula was created to be versatile across textures — from thin and fine to thick and curly — and is safe for color-treated, bleached, highlighted, or chemically processed hair. Dosage is adjustable so you can avoid buildup while still gaining protective and smoothing benefits.

• Fine hair: 1 drop to prevent weighing down; medium/wavy: 2 drops; thick/curly: 3 drops.
• Sulfate-, paraben-, and alcohol-free, suitable for treated and delicate hair strands.
• Can be layered with other styling products without causing greasiness.

Who is this for: VITAMINS Keratin Hair Serum is aimed at anyone seeking a compact, multi-tasking product to simplify styling—people with dry, frizzy, heat-styled, or color-treated hair who want salon-smooth results at home. It suits those who prefer a single, effective product that reduces frizz, protects during heat styling, and delivers lasting shine without heavy residue. Ideal if you value professional-strength ingredients in a small bottle that lasts months with minimal daily use.

Ingredients

Water, Glycerin, Dimethicone, Hydroxyethl Acrylate/Sodium Cocoyl Aminoacids, Cetrimonium Chloride, Fragrance, Hydrolized Keratin, Biotin, Soluble Collagen, Coconut Oil, Castor Oil, Argania Spinosa Kernel Oil, Triticum Vulgare (Wheat Germ) Oil, Vitamin E, Potassium Dimethicone Peg 7 Panthenyl Phosphate , Phenoxyethanol, Caprylyl Glycol, Amodimethicone, Trideceth 12, Sorbic Acid