Anyone who buys a bath salt expects one use: dissolve it in the water and relax. The Bubbling Bath Salts from Secret Play's Pretty But Wild collection promise something more: they also work as a body exfoliant before you even get in the tub. The combination isn't a marketing trick — it comes down to how magnesium sulfate behaves on skin and the granular texture of the product itself.
Why Magnesium Sulfate Relaxes the Body
Magnesium sulfate, also known as Epsom salt, is the main active ingredient in these salts. Once dissolved in hot water, it releases magnesium and sulfate ions that come into direct contact with the skin. Magnesium is a mineral involved in nervous system regulation and muscle relaxation, which is why a magnesium sulfate bath is traditionally associated with easing muscle tension, joint discomfort and, for many users, menstrual cramps.
Hot water is already relaxing on its own, but magnesium sulfate adds a second mechanism: it supports serotonin production, the neurotransmitter linked to feelings of wellbeing, which is why a salt bath tends to feel more relaxing than a plain water soak.
Why It Works as Both an Exfoliant and a Bath Soak
The granular texture of magnesium sulfate is what enables the second use. On dry or damp skin, the crystals act as a mechanical exfoliant: rubbing them in with your hands lifts away dead skin cells from the outer layer, leaving a smoother surface. It's the same principle behind body scrubs — except here the exfoliating ingredient is the very same one that later dissolves in the bathwater for the relaxing effect.
That's what makes the product genuinely "2 in 1": it's not a bath salt with an exfoliant added on top, but a single ingredient that changes function depending on how you use it.
How Much Salt and How Long You Need
For exfoliating, a handful on dry or damp skin is enough: massage in circular motions for one to two minutes, then rinse. For the relaxing bath, add a handful to warm bathwater and wait until the salts fully dissolve before getting in — stepping in too early reduces how much magnesium reaches the skin and dilutes the effect. A 15 to 20 minute soak is the typical window for noticing the relaxing effect on muscles and joints.
When to Choose These Over Plain Bath Salts
Generic Epsom salts deliver the relaxing effect of magnesium but don't include any additional actives. Pretty But Wild adds centella asiatica, hibiscus, fucus and guarana — plant extracts with antioxidant and anti-cellulite properties — plus truffle extract, which nourishes the skin and brings a sweet caramel scent with an added sensory effect. That combination makes sense when you're after more than the basic mineral effect: a bath ritual with texture, scent and skin care, not just salted water.
