


Magnesium Bath Flakes Ultra
Dissolved in warm water, Ancient Minerals Magnesium Bath Flakes Ultra contain only the purest ingredients of highly soluble magnesium chloride with premium distilled OptiMSM® (the world's purity standard for MSM) in a convenient magnesium soak.
Pairs well with
Benefits
Both ingredients are known for their purity and performance in wellness routines. Magnesium chloride offers fast solubility and a clean skin feel, while OptiMSM® is a premium source of organic sulfur, widely used in recovery-focused formulations.
Whether after movement, before bed, or anytime your body needs a break, this formula works for full-body baths or targeted foot soaks—no scent, no fillers, no hassle.


Sourced from concentrated seawater deposits found approximately 2 miles beneath the earth’s surface in the ancient Zechstein seabed, our pure magnesium chloride offers superior absorption and potency compared to other forms of magnesium.
Ingredients
Ingredients List
Genuine Zechstein magnesium chloride flakes (and trace minerals), methylsulfonylmethane (MSM), vegetable glycerinApproximately 15g elemental magnesium per cup
Approximately 3g elemental sulfur (from OptiMSM®) per cup



Customer Reviews
FAQs
Ancient Minerals Magnesium Bath Flakes are made with magnesium chloride, which offers a smooth, easily dissolvable soak and is known for its use in professional wellness settings. Epsom salts, composed of magnesium sulfate, are more commonly found in general retail and may vary in source and consistency.
Our flakes are sourced from the ancient Zechstein seabed, a protected and deeply buried natural deposit. By contrast, many Epsom salt brands do not disclose their source and may be packaged from various suppliers based on availability.
Ancient Minerals magnesium chloride is harvested from the Zechstein seabed, a deeply buried, ancient deposit in the Netherlands. This source has been protected from modern environmental exposure for millions of years, and is known for its consistency and quality.
We use only Genuine Zechstein magnesium chloride, and every Ancient Minerals product carries the Genuine Zechstein mark—a reflection of its origin and mineral identity.
Magnesium baths have been used by families as a gentle self-care practice for children. For a small bath, many parents choose to add ½ to 1 cup of flakes to warm water, adjusting as needed based on the child’s age and comfort level.
As with any new product, we recommend consulting your pediatrician—especially for children under 2 years of age.
Magnesium baths can be enjoyed regularly as part of a self-care routine. Many people choose to soak a few times per week, while others make it a daily ritual.
As with any personal care practice, frequency can be adjusted based on your individual needs and preferences.
Many women choose to include magnesium baths as part of their self-care routine during pregnancy or breastfeeding. However, if you are pregnant or nursing, we recommend consulting your healthcare provider before use—especially if it’s your first time using topical magnesium.
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