The Biolage Hydra Source Holiday Duo is the 2026 holiday box of Hydra Source Shampoo and Hydra Source Detangling Solution, a moisture routine for dry hair in two full 400 ml sizes.
Inside the box:
- Hydra Source Shampoo, 13.5 oz (400 ml)
- Hydra Source Detangling Solution (conditioner), 13.5 oz (400 ml)
Both are infused with fermented aloe and micro-filtered hyaluronic acid, Biolage's hydration concentrate for thirsty hair. The shampoo cleanses dry, tired hair without stripping its natural oils, restores moisture balance and adds shine and softness. The Detangling Solution is the line's lightweight rinse-out conditioner: it detangles instantly, controls static and frizz and adds softness with weightless moisture.
Used together, Biolage reports 6x more hydration after one use compared with a non-conditioning shampoo.
The shampoo is suitable for colour-treated hair, and Biolage recommends Hydra Source for curls and coils that need moisture. The shampoo is also silicone-free, paraben-free and mineral oil-free, and Biolage products are vegan and certified cruelty-free under the Leaping Bunny Programme. The holiday box makes the pair ready to give.
