Aimed at dry, brittle, coarse, straightened, or colour-treated hair that needs added softness, shine, and frizz control — Redken's All Soft line is built for hair that's lost moisture and suppleness. It's a leave-in oil, so it suits anyone comfortable applying a small amount to wet or dry hair rather than rinsing a treatment out.

The differentiator is versatility: rather than a single-purpose shine serum, it's positioned to be used at several points in a routine — pre-wash, pre-heat, post-style, or overnight — and the argan kernel oil's antioxidant and vitamin E content is paired with a silicone base specifically to address the shine loss and elasticity issues common to dry, over-processed hair.

Apply sparingly — a small amount goes a long way since it's never rinsed out.

1. Before shampooing or blow-drying, smooth a small amount through damp hair for added moisture.
2. After blow-drying, apply to dry hair to smooth frizz and add shine.
3. Add a drop into a leave-in treatment for extra softness, or apply overnight for deeper conditioning.
4. Rub the oil between your palms to warm it before combing it through mid-lengths and ends.

Pros

• Multi-use: works pre-shampoo, pre-blow-dry, post-style, mixed into treatments, or applied overnight, rather than serving only one step
• Redken's own testing attributes up to 13x more softness, up to 87% more shine, and up to 72 hours of frizz control to the formula
• Lightweight silicone base absorbs without a heavy, greasy residue
• Vegan formula

Cons

• Contains multiple individually listed fragrance allergens (linalool, coumarin, limonene, hexyl cinnamal, citronellol, benzyl benzoate, amyl cinnamal, citral, geraniol, alpha-isomethyl ionone), worth checking for fragrance-sensitive users
• Silicone-forward formula may need periodic clarifying shampoo to prevent buildup with frequent use
• Geared toward dry/coarse or damaged hair — very fine hair may need to use it sparingly to avoid weight