KEVIN.MURPHY THICK.AGAIN lightweight leave-in thickening treatment 100ml — volumizing, heat protection to 420°F

KEVIN.MURPHY THICK.AGAIN is a lightweight leave-in treatment that visibly thickens fine or thinning hair while providing heat protection and improved body.

Designed for men with fine, aging or thinning strands, THICK.AGAIN blends professional salon science with everyday ease: it thickens each hair fiber, helps reduce breakage during styling, and protects against heat up to 420°F / 216°C. The formula is free from sulphates and parabens, cruelty-free, and fast-absorbing so you can use it before blow-drying or styling without weighing hair down.

How does THICK.AGAIN add thickness without feeling heavy?

The formula uses a hair-thickening complex adapted from eyelash-thickening technology to coat and plump individual fibers, creating the appearance of fuller hair without a greasy finish. Its leave-in texture distributes easily and dries light for natural movement and bounce.

• Lightweight leave-in serum that absorbs quickly
• Coats strands to increase apparent diameter
• Maintains natural texture and movement
• Does not leave sticky or heavy residue

Can I use it when styling with heat tools?

Yes — THICK.AGAIN provides heat protection up to 420°F / 216°C, making it safe to use before blow-drying, flat-ironing, or hot-brushing. It also helps reduce breakage during mechanical styling by adding a protective layer to each strand.

• Heat protection rated to 420°F / 216°C
• Reduces breakage from styling tools
• Works under pomades, waxes, and other styling products
• Apply to damp hair prior to heat styling for best results

What results can I expect and how quickly?

Many users notice improved body and fuller-looking hair after the first few uses, with ongoing improvements in manageability over regular application. While instant visual thickening is common, cumulative benefits come from protecting hair and reducing breakage during styling.

• Immediate perceptible increase in body and bounce
• Reduced snapping and styling breakage with regular use
• Best results when used consistently as part of your routine
• Suitable for daily or pre-styling application

Is THICK.AGAIN suitable for sensitive scalps or colored hair?

The formula is free of sulphates and parabens and formulated to be gentle, making it suitable for most hair types including color-treated or thinning hair. As with any product, test a small area first if you have a sensitive scalp or specific allergies.

• Sulphate-free and paraben-free formulation
• Cruelty-free and salon-grade ingredients
• Safe for use on color-treated hair when used as directed
• Patch-test recommended for very sensitive skin

Who is this for: THICK.AGAIN is aimed at men who want fuller-looking hair without heavy styling products — especially those with fine, thinning, or aging hair seeking added body, heat protection, and reduced breakage. It's a good choice for anyone who styles with heat and wants a natural, non-greasy finish that boosts thickness and manageability.

Ingredients

Water, glycerin, dimethicone, keratin, tocopherol (vitamin E), panthenol, peptides, fragrance.