Biolage Full Rescue Densifying Leave-In Spray – 8.5 fl oz, rosemary & niacinamide for weightless density and flyaway control

Biolage Full Rescue Densifying Leave-In Spray is a lightweight leave-in mist formulated with rosemary oil and niacinamide to create an instantly fuller-looking finish while detangling and controlling flyaways.

This leave-in spray is designed to add visible density without weighing hair down. It combines steam-distilled rosemary oil for targeted root support and micro-dosed niacinamide to help balance scalp moisture, delivering slip for easier combing and smoothing of baby hairs. Vegan and free from parabens, mineral oil, silicones and artificial colorants, it suits color-treated hair and fits into a Full Rescue routine alongside shampoo, conditioner and restorative mask.

How does this spray make hair look thicker without feeling heavy?

The formula uses fine droplets and lightweight ingredients so strands retain movement while appearing fuller. Micro-dosed botanicals coat hair subtly, increasing apparent diameter and lift at the root rather than adding sticky buildup.

• Fine mist distributes product evenly from root to tip
• Rosemary oil targets roots to boost lift
• Niacinamide helps maintain balanced scalp moisture
• Weightless finish preserves natural bounce

Will it help with detangling and controlling flyaways during styling?

Yes — the leave-in adds slip so combs and brushes glide through damp hair, reducing breakage from tugging. It also smooths short, stray hairs to create a neater look while you style.

• Detangling slip speeds up comb-through
• Reduces friction to help prevent breakage
• Controls flyaways for a polished finish
• Works under heat or air-dry styling

How and when should I use this product for best results?

Apply to towel-damp hair after cleansing and conditioning. Spray from roots to ends, comb through to distribute, then style as usual; do not rinse out. Use with other Full Rescue products for a coordinated approach to thinning or fragile hair.

• Apply on damp hair after shampoo and conditioner
• Mist evenly and comb through for even coverage
• Leave in; style with heat tools if desired
• Incorporate into daily or post-wash routines

Is the formula safe for color-treated or sensitive scalps?

Formulated without parabens, mineral oil, silicone and artificial color, the spray is suitable for color-treated hair and daily use. While niacinamide supports scalp moisture balance, patch testing is recommended for very sensitive scalps.

• Free of parabens and silicones
• Suitable for color-treated hair
• Vegan and cruelty-free formulation
• Patch test recommended for sensitive skin

Who is this for: Biolage Full Rescue Densifying Leave-In Spray is aimed at anyone with fine, thinning or fragile hair who wants an instant fuller appearance without stiffness or residue. It’s a practical daily leave-in for people seeking easier detangling, reduced flyaways and a lightweight boost in volume—especially useful for those who color their hair or follow a Full Rescue regimen to strengthen and maintain strand health.

Ingredients

Aqua/Water/Eau, Alcohol Denat. PVP, PEG-40 Hydrogenated Castor Oil, Triethanolamine, Propylene Glycol, Phenoxyethano Parfum/Fragrance, Acrylates/Beheneth-25 Methacrylate Copolymer Capril Glycol, Biotin, Limonene, Niacinamide, Rosmarinus Officinalis Leaf Oil/Rosemary Leaf Oil, Hexyl Cinnamal, Coumarin, Benzyl Alcohol, Zinc PCA, Safflower Glucoside, Linalool, Amyl Cinnamal, Geraniol, Isoeugenol, Alpha-Isomethi Onone, Hydroxycitronellal, Benzyl Benzoate, Cinnamyl Alcohol, Citronello Tocopherol, Sodium Citrate.