TRESemmé Keratin Smooth Shampoo 4-Pack 28 fl oz — Frizz-Reducing, Heat-Protective Formula

TRESemmé Keratin Smooth Blowout Shampoo is a keratin-infused salon-quality shampoo that realigns hair cuticles to reduce frizz and deliver smooth, blowout-ready hair for up to 72 hours.

Designed to bring professional blowout results into your everyday routine, this 4-pack of 28 fl oz bottles combines keratin with Lamellar-Discipline technology to smooth unruly strands. The formula begins working in the shower to help protect against heat styling while leaving hair easier to manage, shinier, and conditioned for styling. It’s free of parabens, mineral oil, and DMDM hydantoin, and certified cruelty-free by PETA.

How does this shampoo tame frizz and improve manageability?

The formula contains keratin proteins and Lamellar-Discipline, which work together to align and smooth the hair cuticle. This reduces surface irregularities that cause frizz and makes strands lay flatter, creating a sleeker appearance after blow-drying.

• Keratin-enriched to reinforce and smooth the hair surface
• Lamellar-Discipline helps restore a layered cuticle structure for smoother texture
• Reduces friction for easier detangling and styling
• Promotes a salon-style blowout finish when used with the full regimen

Will this protect my hair when I use heat tools?

This shampoo is formulated to begin heat protection in the shower, helping prepare strands for thermal styling. For higher-temperature tools, pair it with TRESemmé Protecting Heat Styling Spray to protect up to 450°F and lock in style longevity.

• Shower-based protection creates a smoother surface before styling
• Recommended to use with TRESemmé Protecting Heat Styling Spray for high-heat styling
• Helps reduce heat-related roughness when combined with the full Keratin Smooth regimen

What ingredients or chemicals does this shampoo avoid?

TRESemmé Keratin Smooth Blowout Shampoo is formulated without parabens, mineral oil, and DMDM hydantoin. The product is also PETA Certified Cruelty-Free, reflecting the brand’s commitment to ethical testing standards.

• 0% parabens for a gentler preservative profile
• No mineral oil, leaving hair feeling lighter and less weighed down
• Free from DMDM hydantoin
• PETA Certified Cruelty-Free label for ethical assurance

How should I use the Keratin Smooth products for best results?

For optimal smoothness and style hold, start by washing with Keratin Smooth Blowout Shampoo followed by the matching conditioner. After towel-drying, apply Keratin Smooth Blowout Mousse for volume if desired, then finish with Silk Serum and an Extra Hold Hairspray for all-day control.

• Use the shampoo and conditioner together to prepare the cuticle
• Apply mousse to damp roots for lift and body
• Use silk serum on mid-lengths and ends for added shine
• Finish with an extra-hold hairspray to lock the blowout in place

Who is this for: This four-bottle pack is ideal for people with frizz-prone, unruly, or textured hair who want salon-style smoothness at home and prefer value-sized bottles for frequent use. It suits anyone looking for a keratin-based care system that minimizes frizz, supports heat styling, avoids certain preservatives, and values cruelty-free products.

Ingredients

Water (eau), Sodium C12-13 Pareth Sulfate, Cocamidopropyl Betaine, Sodium Chloride, Glycerin, Sclerocarya Birrea Seed Oil, Argania Spinosa Kernel Oil, Lysine Hci, Arginine, Hydrolyzed Keratin, Ceramide Ng, Dimethiconol, Citric Acid, Fragrance (parfum), Carbomer, Sodium Benzoate, Glycol Distearate, Guar Hydroxypropyltrimonium Chloride, Tea-dodecylbenzenesulfonate, Sodium Laureth Sulfate, Ppg-9, Disodium Edta, Cocamide Mea, Peg-45m, Alpha-isomethyl Ionone, Benzyl Alcohol, Benzyl Salicylate, Citronellol, Geraniol, Hexyl Cinnamal, Limonene, Linalool, Mica (ci 77019), Titanium Dioxide (ci 77891)