
REFILL for Rhubarb Hair Mask With Castor Oil - 500 ml
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Eco-Friendly Rhubarb Hair Mask for Luxurious Care
Experience the ultimate in sustainable hair care with our eco-friendly Rhubarb Hair Mask, now available in a 500 ml refill tube. Cherished by hair enthusiasts and award-winning, this luxurious mask ensures your hair receives long-lasting hydration while reducing plastic waste. Infused with rhubarb extract, this mask soothes your scalp and restores vitality to every strand with macadamia and castor oils.
Why You'll Love This Hair Mask:
- Extended Use: One refill pack equals two original-sized products, offering more care with less packaging.
- Deep Moisturization: Nourishes and revitalizes dry, damaged hair, providing silky smoothness and shine.
- Frizz Reduction: The creamy texture envelops each hair fiber, reducing frizz for a polished look.
- Sustainable Choice: Vegan, cruelty-free, and crafted with minimal, natural ingredients, our mask aligns with eco-conscious values.
Featured Ingredients:
- Rhubarb Extract: Packed with anti-inflammatory and anti-bacterial properties, it soothes sensitive scalps and promotes healthy hair growth.
- Macadamia Oil: Rich in fatty acids and antioxidants, this oil fortifies hair, making it easier to comb while resisting environmental damage.
- Castor Oil: Known for its anti-microbial effects, it reduces dandruff and improves scalp health for stronger, shinier hair.
Indulge in salon-quality hair care at home and embrace a greener lifestyle. Order your refill tube today and join the movement for more product and less packaging.
SHIPPING + RETURNS
THE RATHER IMPORTANT BITS
This rather lovely piece ships directly from our brand partner - we work with independent brands who are absolutely brilliant and work frightfully hard to create beautiful things.
SHIPPING DESTINATIONS
Now, here's the thing - our wonderful brand partners ship to lots of different places, but not all of them can ship worldwide.
Some are brilliant at international shipping, others prefer to keep things closer to home.
At checkout, you'll see exactly where this particular brand can send your goodies.
We're terribly sorry, but shipping costs do vary rather wildly depending on where you are in the world. The exact figures pop up at checkout - no nasty surprises!
RETURNS
You have 14 days to return items.
Now, we absolutely adore our brand partners - they work incredibly hard and we do try to support them as much as we possibly can. So I'm rather afraid we have to pass the return postage costs back to you. Frightfully sorry about that!
🌍 PLEASE CHOOSE THOUGHTFULLY:
Our wonderful partners put their hearts into everything they make.
Ordering multiple sizes to try at home is rather hard on our planet and makes things jolly difficult for these brilliant independent creators.
When in doubt, do ask us first!
The brands we work with all have a chat option, and they love to chat!
PAYMENT
We're frightfully modern and accept all the usual suspects:
Visa, Mastercard, American Express, PayPal, Apple Pay, Google Pay, and Shop Pay
SECURE AS HOUSES
Everything's properly encrypted and secure - your details are safer than the Crown Jewels!
All prices in lovely British pounds £ GBP, though international chaps will see converted prices.
Any payment pickle? We're here to help sort things out! Contact us

We are Sostter
We met as children. Grew up a few streets apart. Built dens, rode bikes, and eventually — built Sostter.
It started with a shared love of objects that meant something…things with a past, or at least a purpose.
Now, Sostter is our grown-up version of a treasure hunt: a space where design meets storytelling.
We curate independent brands, one-of-a-kind finds, and everyday essentials with character.
Giving Back
We’re proud to support Sutton Night Watch, a grassroots UK charity making a real difference in the lives of those facing homelessness. Through regular donations of stock, supplies, and essentials, we back their mission to offer warmth, dignity, and practical help to anyone in need — right where it matters most.
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Sostter partners with independent brands that intrigue, inspire, and bring something genuinely different to the world of fashion, design, and living. Join us!