Ren Clean Skincare

Magnesium Booster Bath Salts by Ren Clean Skincare

750ml | SKU# UK200021566

In Stock

Add to cart options


FREE Overnight Dark Spot Cream

When you spend £30 on REN Clean Skincare

10ml. Adds to bag automatically. Limited availability.

Product Actions

Rest and restore the mind, body and complexion with REN Magnesium Booster Bath Salts, a bath product containing a high concentration of magnesium salts extracted from a 250-million-year-old Zechstein sea.

This product helps turn any bath into a relaxing haven, providing the mind and body with a magnesium boost that works to relieve muscle tension and promote a healthy, happy mind. The salts inspire restful sleep and help the body to unwind following a period of exercise.

Adding just two to three handfuls of REN Magnesium Booster Bath Salts into warm bath water can help mind, body and soul. The salts can be used as a companion to REN’s Atlantic Kelp and Microalgae Anti-Fatigue Bath Oil.

Harness the healing power of magnesium with REN Magnesium Booster Bath Salts, which contains a high concentration of magnesium to help soothe the mind and muscles.
Key Benefits:
  • Restorative bath salts deliver a magnesium boost to mind, body and soul
  • Turns bath time into a relaxing retreat
  • Contains magnesium extracted from 250-million-year-old ocean rock
  • Can be used after exercise
  • Work to soothe the mind and relieve muscle tension
How to Apply

Add 2 to 3 handfuls of the salts to a warm bath, lay back and relax for 20 minutes.

Ideal when used with Ren’s Atlantic Kelp and Microalgae Anti-Fatigue Bath Oil.


Free on all orders, over £40
Delivery within 2-4 working days.* (Please note, during Sale periods and promotional offers this may take up to 7 working days).

Free on all orders over £70*
Order before 1pm, and receive your order the next working day.**

Order before midday (Monday to Friday only) and receive your order by 6pm the same day. Only available for central London postcodes (check the map here).

Order before midday and collect your order for free from your chosen store in 2-5 days.
Read more about our Click & Collect service.
Click and Collect orders can not include Pre/Back order items, these must be ordered separately.

Delivered instantly by email, Free Delivery

If you'd like to send your order as a gift, we can add a beautiful finishing touch with our gift wrap. Choose complimentary gift wrap at checkout.

*This option is available for all UK Mainland addresses, excluding the Scottish Highlands and other parts of Scotland.

About Ren Clean Skincare
Built on the pillars of performance and purity, the Ren Clean Skincare collection is formulated with natural plant and mineral derived bio-actives. It’s clean beauty that delivers results.
Item has been added to your wish list!Visit �
What other customers think
Magnesium Booster Bath Salts is rated 4.5 out of 5 by 21.
Rated 5 out of 5 by from The best Magnesium I have ever tried! The quality of this Magnesium is unsurpassed! It is a fantastic bath product that really gives results! The flakes are large and dissolve beautifully to give a mineral rich bath soak. Without fragrance and completely without additives, this is pure and unadulterated luxury!
Date published: 2020-07-11
Rated 5 out of 5 by from Excellent for muscle relaxing I love these bath salts! I use them especially after I've been to the gym and my muscles feel sore. Increasing your magnesium levels is vitally important and also aids with sleep. As with all REN products, they are super gentle on the skin and I have no irritation. Will buy again!
Date published: 2020-03-20
Rated 5 out of 5 by from The Loveliest and Most Relaxing Bath Ever I've had the Ren Bath Salts in my bathroom cabinet for weeks and never got around to using them. Yesterday I used them and they helped create a really lovely relaxing bath. Soaking your entire body in warm water with magnesium definitely can help relax muscles and loosen stiff joints. What I love most about Ren Skincare is that they use fully organic and non-toxic formulations which is perfect for your skin.
Date published: 2020-03-11
Rated 5 out of 5 by from Great quality Magnesuim! A fabulously large tub with excellent quality magnesium flakes, I really like this and I pair it with the Ren Anti Fatigue Bath oil and it is the perfect combination. I would definitely recommend and will also re-purchase! Leaves skin soft and muscles relaxed!
Date published: 2020-03-10
Rated 5 out of 5 by from Lovely product A really lovely product, I really like the fact these salts are unscented - they’re great for pampering baths during the day time/morning when you don’t want a bath salt that is made to aid with getting you to sleep. Helps to relax achey muscles and relieve tensions( great post gym). The product size is also far bigger than I was expecting!
Date published: 2020-02-15
  • y_2020, m_8, d_2, h_15
  • bvseo_bulk, prod_bvrr, vn_bulk_3.0.10
  • cp_1, bvpage1
  • co_hasreviews, tv_0, tr_21
  • loc_en_GB, sid_MUK200021566, prod, sort_[SortEntry(order=SUBMISSION_TIME, direction=DESCENDING)]
  • clientName_spacenk-en
  • bvseo_sdk, dw_cartridge, 17.1.0, p_sdk_3.2.0
  • CLOUD, getContent, 178ms
  • reviews, product
By entering your email you consent to the use by Space NK of your personal data in accordance with our T&Cs and Privacy Policy