K18 Molecular Repair Hair Oil 0.34 fl oz — Strengthening Peptide Treatment, Heat Protectant & Frizz Control

K18 Molecular Repair Hair Oil is a lightweight, silicone-free treatment oil that strengthens damaged hair, smooths frizz, and adds long-lasting shine while protecting from heat styling.

This biotech-formulated oil combines the brand’s patented peptide technology with nourishing plant-based oils to work on two levels of the hair fiber: rebuilding internal strength and polishing the outer cuticle. Suitable for all hair types, the 0.34 fl oz bottle is designed for targeted doses—1–3 drops to start—so you can customize treatment from damp or dry hair without buildup.

How does this oil repair damage inside the hair?

The formula includes K18PEPTIDE, a patented peptide that is engineered to penetrate the hair structure and fortify weakened areas. Rather than only coating the surface, it supports the hair’s internal matrix to help hair resist future stress.

• Patented peptide targets inner fiber strength
• Works beneath the cuticle to address structural damage
• Clinically shown improvements in hair resilience when used as directed*

Will it actually reduce frizz and add shine?

Yes — the oil pairs internal repair with surface-smoothing ingredients so strands look and feel calmer. Lightweight emollients tame flyaways while squalane and hemisqualane boost reflective shine without weighing hair down.

• Dual-action approach: repair + cuticle smoothing
• Increases visible shine and reduces frizz-prone texture
• Silicone-free formulation avoids heavy buildup

Can I use it with heat styling and color-treated hair?

The product is formulated to offer heat protection and enhance color vibrancy when applied properly. It’s intended to be used before styling to help shield strands from thermal stress and to preserve color luminosity.

• Heat-protection benefits up to high styling temperatures when used as directed*
• Designed to reduce split ends and help maintain color brightness
• Safe to layer over treatments like K18 Molecular Repair Hair Mask

How do I use it for best results?

Start with a small amount—typically 1–3 drops—and increase only if needed. Apply to towel-dried hair from mid-lengths to ends to support repair and frizz control; use sparingly on dry hair as a finishing oil for added polish and shine.

• Apply to damp hair after towel-drying for repair and frizz control
• Use on dry hair to smooth flyaways and add shine as a finisher
• Combine with the K18 Molecular Repair Hair Mask for a full-strength regimen

Who is this for: This lightweight, peptide-powered oil is ideal for anyone seeking to strengthen chemically or heat-damaged hair while keeping a natural, non-greasy finish. It suits all hair types—straight, wavy, curly, or coily—and is especially helpful for people who want frizz control, improved shine, and protection during regular heat styling without silicones or buildup.

Ingredients

Caprylyl Caprylate/Caprate, Squalane, Persea Gratissima (Avocado) Oil, Helianthus Annuus (Sunflower) Oil, C13-15 Alkane, Undecane, Benzyl Alcohol, Tridecane, Castor Isostearate Succinate, Propanediol, sh-Oligopeptide-78, Fragrance (Parfum), Tocopherol, Cinnamal, Hexyl Cinnamal, Limonene, Linalool.