- Henna. Balances PH and oil production while enhancing colour, strengthening and repairing each strand. Reduces oxidative stress and conditions, leaving behind glossy, luxurious locks.
- Coconut Oil. This rich oil is renowned for its ability to tame frizz and encourage healthy growth. It penetrates each strand with ease, while antimicrobial properties protect and soothe your scalp.
- Sodium Coco-Sulfate. This natural coconut extract reduces irritation while cleansing, by creating a luxurious yet gentle foam that soothes and clears without stripping.
- Planet Friendly. Ditch the plastic and the palm oil with this sustainable little bar.
- Invigorating Aroma. Infused with a spicy juniper aroma.
- Travel Friendly. Take your bar anywhere you like – there’s no travel limit on solids!
- Long Lasting. This little bar can last up to 60 washes!
- Kind. Free from silicon, artificial colours, parabens, alcohol, SLS/SLES and EDTA.
Dark & dyed
hår Shampoo Bar – Shine Boost | 50g
with HENNA & JUNIPER
Our cult hero, planet-saving shampoo bar. Shine enhancing henna brings dark and dyed hair to life. With a spicy juniper aroma.
In stock
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- Free delivery over £10
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In stock
Good to know:
Made in the UK
Dark dyed hair
Alcohol free
Vegan friendly
Cruelty free
Phthalate free
Planet friendly
Plastic free
Travel friendly
Recyclable
- Wet your hair.
- Swirl the shampoo bar between your hands or over your hair to create a lather.
- Massage in to your hair.
- Rinse and condition (if you’d like to!)
Sodium Coco-Sulfate, Henna, Parfum, Aqua , Cocos Nucifera (Coconut) Oil , Limonene, Eugenol, Isoeugenol, Coumarin, Alpha-Isomethyl Ionone , Geraniol.
Josephine Mcgraw
Rated 5 out of 5
Love this shampoo, hair feels so soft
2nd September 2026
val davies
Rated 5 out of 5
So convenient for bathroom shelf,no plastic bottles to take up room. No scalp irritation just squeaky clean hair, no silicone to weigh fine hair down. Conditioner bar to finish.
31st August 2026
Joan Scott
Rated 5 out of 5
I have tried many other shampoo bars but none come close to gruum.
Great lather and cleaning. My hair lasts longer between washing
22nd July 2026
Complete your hair care routine 👇
glôs Conditioner Bar – Shine Boost | 50g
£10.00 — available on subscription from £7.00 every month
hår Pro Shampoo Bar – Hair Growth | 50g
£12.00 — available on subscription from £9.00 every month
glôs Pro Conditioner Bar – Hair Growth | 50g
£13.00 — available on subscription from £9.00 every month
låda Shampoo Carry Tin
£3.00
lagga Soap Dish
£5.00
Superstar ingredients
Our products make the most of natural ingredients, including…
Henna
Balances pH and oil production, enhances color, and strengthens each strand. Reduces oxidative stress, conditions, and leaves your hair glossy and luxurious.
Juniper
Invigorating aroma. Infused with a spicy juniper fragrance for an energising experience.
Coconut Oil
Known for taming frizz and promoting healthy growth, it penetrates each strand, while its antimicrobial properties protect and soothe the scalp.
