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Fresh, cooling aromatherapy for bath or hot tub

Muscle Therapy

Aromatherapy Bath Crystals · 32 oz

A magnesium-rich, spa-safe mineral soak — made for hot tubs, spas, jetted tubs, and baths.

Hot Tub SafeNo Oily ResidueDissolves CleanlyNo Artificial Coloring32 oz = Up to 8 SoaksMade in USA
$21.9932 oz · up to 8 soaks
About $2.75 per soak
  • Plant-based aromatherapy fragrance
  • Magnesium-rich Epsom and Dead Sea salt blend
  • Dissolves cleanly in hot tubs, spas, jetted tubs, and baths
  • No oily residue or artificial coloring
  • Up to 8 soaks per 32 oz bag
Ships free over $50
RX Therapy Bundle Complete the set — shop the RX Therapy Bundle From $129.99 →
Prefer fragrance-free? Try Native Aroma Free
Free shipping over $50 Money-back guarantee Made in the USA
Product details

Revitalize your body with Muscle Therapy Aromatherapy Bath Crystals from Relax Spa & Bath. Infused with a refreshing menthol aroma, these magnesium-rich Epsom salt crystals are designed to soothe tired muscles and promote relaxation. Fortified with essential vitamins and minerals, this luxurious bath therapy helps alleviate soreness and tension, leaving you feeling rejuvenated. Perfect after a workout or a long day, Muscle Therapy transforms your bathing experience into a soothing escape. Simply dissolve the crystals in warm water and let the calming scents envelop you as they work to relieve discomfort and enhance your overall well-being. Indulge in the ultimate muscle relief today!  Our 32oz bag of premium aromatherapy bath crystals provides up to 8 rejuvenating soaks, transforming your bath or hot tub into a soothing retreat again and again,

    The Relax difference

    Safe for your soak. Easy on your spa routine.

    Relax Spa & Bath crystals are designed for hot tubs, spas, jetted tubs, Jacuzzis, and baths. They dissolve cleanly, contain no artificial coloring, and leave no oily residue behind.

    Hot Tub Safe
    No Oily Residue
    Dissolves Quickly
    No Artificial Coloring
    Made in USA
    The scent

    The scent experience

    A magnesium-rich, spa-safe mineral soak with plant-based aromatherapy — designed to dissolve cleanly in hot tubs, spas, jetted tubs, and baths, with no oily residue.

    Best for
    Fresh routinesMorning soaksHot tub ownersClean spa scent
    How to use
    1 Measure about 4 oz (½ cup) of crystals.
    2 Add to warm bath or hot tub water.
    3 Let them dissolve, then soak and unwind.
    Why hot tub owners choose Relax Spa & Bath

    Ordinary bath products can contain oils, colorants, or additives that aren't ideal for spa systems. Relax Spa & Bath crystals are made to dissolve cleanly — without oily residue or artificial coloring.

    Relax Spa & Bath
    Hot tub safe
    No oily residue
    No artificial coloring
    Oils & bath bombs
    May leave residue
    May affect filters
    May discolor water
    What customers say

    Trusted in real hot tubs and baths

    Customer Reviews

    Based on 2 reviews
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    C
    Cade R.
    Safe in hot tub

    Great to use and smells awesome. I use them in my hot tub and no problems!

    P
    Phil D.
    I’ve been a loyal longtime

    I’ve been a loyal longtime customer and these bath therapy salts are the best on the market. I use a variety of them daily in my pool hot tub. I highly recommend this product and vendor.

    Good to know

    Questions, answered

    Everything you need to know before your first soak.

    Yes. Relax Spa & Bath crystals are designed for hot tubs, spas, jetted tubs, Jacuzzis, and baths. They dissolve cleanly and leave no oily residue. Always follow your spa manufacturer’s maintenance guidance.

    The crystals are designed to dissolve cleanly and leave no oily residue behind.

    Start with approximately 4 oz (½ cup) per bath or hot tub soak.

    A 32 oz bag provides up to 8 soaks, depending on how much you use.

    Yes — they’re made for jetted tubs, spas, Jacuzzis, hot tubs, and baths, and dissolve cleanly. Follow your equipment’s maintenance guidance.

    Try Native Aroma Free — a clean mineral soak with no added fragrance.

    Complete your ritual

    RX Therapy Bundle RX Therapy Bundle $129.99 De-Stress Therapy De-Stress Therapy $21.99