There's a very particular heartbreak in the sound of a shampoo bottle spluttering out its last on wash day. This 500ml pouch is the plot twist: the same Biolage Hydra Source formula, poured straight back into the bottle already sitting in your shower.

TL;DR: A 500ml refill pouch of Biolage Hydra Source Shampoo — the fermented aloe and hyaluronic acid cleanser built for dry, dull, colour-treated hair. More shampoo, less packaging, same soft-and-shiny finish.

Product Details and Benefits

• Format: A 500ml refill pouch, not a bottle. Decant it into an empty, rinsed Biolage Hydra Source bottle and carry on as usual. Holds 25% more shampoo than the standard retail bottle.**
• The hydration hit: Infused with fermented aloe vera and micro-filtered hyaluronic acid. Aloe nourishes the strand and helps hair hold onto moisture, while hyaluronic acid penetrates the hair fibre and seals the cuticle for weightless hydration. Used across the full Hydra Source routine, it delivers 6x more hydration after one use.*
• Gentle cleansing: Lifts away oil and product build-up from dry, tired hair without stripping its natural oils.
• Restores moisture balance: Puts hydration back where it belongs, so lengths feel soft rather than squeaky.
• Shine and softness: Brings gloss back to dull, lacklustre hair and leaves strands touchably smooth.
• Damage defence: Helps prevent split ends and future damage.
• Who it suits: Dry hair across all textures, including curls and coils. Safe for colour-treated hair.
• Formula credentials: Vegan, with no animal-derived ingredients or by-products. Paraben free, mineral oil free, silicone free and colourant free. Biolage is approved by Cruelty Free International under the Leaping Bunny Programme.
• Lighter on packaging: The pouch is made with 62% less plastic than the equivalent amount of formula in Biolage 400ml bottles.***

How to Use

1. Refill. Twist off both caps and pour the pouch into an empty, rinsed Biolage Hydra Source Shampoo bottle. Write the refill date and the batch number (printed on the back of the pouch) on the bottle, and only refill the bottle named on the label.
2. Wash. Apply to wet hair, work into a lather, then rinse thoroughly.
3. Follow through. Chase it with Hydra Source Conditioning Balm to complete the moisture routine.

Pro tip: Resist the urge to empty the whole pouch in one go — 500ml simply will not fit inside a 400ml bottle. Pour to the shoulder, roll the pouch down from the top, clip it shut and stash it in the cupboard for next fortnight's top-up.

Why You'll Love It

Dry hair gets its drink, the recycling bin gets a break, and the bottle you already like keeps its spot in the shower. Add the Hydra Source 500ml refill to your cart and give thirsty strands the top-up they have been quietly begging for.

*6x more hydration after one use, measured using Hydra Source Shampoo, Conditioning Balm and Leave-In Tonic versus a non-conditioning shampoo. Source: biolage.com.

**25% more product compared to the Biolage retail bottle. Source: biolage.com.

***62% less plastic compared to the equivalent amount of formula in Biolage 400ml / 13.5 fl. oz. bottles. Source: biolage.com.