Sebastian Dark Oil Lightweight Hair Mask 500ml

The Sebastian Dark Oil Lightweight Hair Mask 500ml is a luxurious, salon-grade deep conditioning treatment designed to restore moisture, smoothness, and shine to dry, damaged, or frizzy hair. Infused with a nourishing blend of Argan Oil (Argania Spinosa) and Jojoba Oil (Simmondsia Chinensis), this beautifully fragranced mask delivers intense hydration and repair without weighing hair down — leaving locks silky, glossy, and full of lightweight body.

Part of the iconic Sebastian Dark Oil collection, this mask is the ultimate weekly or monthly treatment for anyone looking to revive dull, brittle, or over-processed hair. Its lightweight oil-infused formula penetrates deep into the hair fibre to smooth the cuticle, reduce frizz, and restore a healthy, luminous finish.

Key Benefits

• Deeply conditions and repairs dry, damaged, and over-processed hair
• Infused with Argan Oil and Jojoba Oil for intense nourishment
• Lightweight formula — adds body and shine without heaviness
• Smooths the hair cuticle and reduces frizz
• Leaves hair silky, glossy, and visibly healthier
• Enriched with Panthenol (Pro-Vitamin B5) for added strength and elasticity
• Signature Dark Oil fragrance for a luxurious sensory experience
• Suitable for all hair types, especially dry, coarse, or chemically treated hair

When to Use

Use weekly for dry, damaged, or chemically treated hair that needs regular intensive care, or monthly as a maintenance treatment for healthier hair types. Ideal as a pre-event treatment for an instant boost of shine and smoothness, or as part of an ongoing hair repair routine. Perfect for those with colour-treated, bleached, heat-damaged, or naturally coarse hair seeking a salon-quality deep conditioning mask at home.

How to Use

1. Shampoo hair with your preferred Sebastian shampoo and rinse thoroughly.
2. Gently towel-dry hair to remove excess water.
3. Apply a generous amount of the Dark Oil Lightweight Mask evenly through mid-lengths and ends, avoiding the roots.
4. Comb through to ensure even distribution.
5. Leave on for 15 minutes to allow the oils to deeply penetrate the hair fibre.
6. Rinse thoroughly with lukewarm water.
7. Style as usual. For enhanced results, follow with Sebastian Dark Oil or a finishing serum.

Ingredients

Key Active Ingredients: Argan Oil (Argania Spinosa Kernel Oil), Jojoba Oil (Simmondsia Chinensis Seed Oil), Panthenol (Pro-Vitamin B5), Quaternium-80.

Full Ingredients List: Aqua/Water/Eau, Stearyl Alcohol, Behentrimonium Chloride, Cetyl Alcohol, Parfum/Fragrance, Panthenol, Isopropyl Alcohol, Benzyl Alcohol, Phenoxyethanol, PEG-2M, Methylparaben, Propylene Glycol, Quaternium-80, Propylparaben, Disodium EDTA, Hexyl Cinnamal, Coumarin, Citronellol, Silica, Citric Acid, Argania Spinosa Kernel Oil, Simmondsia Chinensis (Jojoba) Seed Oil, BHT.