Understanding the Different Forms of Magnesium
Before you can decide if you can use Epsom salt to make magnesium spray, it is crucial to understand the chemical differences between common magnesium sources. Not all magnesium salts are created equal, especially regarding how they interact with your skin. The two main compounds discussed in the context of transdermal application are magnesium sulfate (Epsom salt) and magnesium chloride (found in magnesium flakes).
Magnesium Sulfate (Epsom Salt)
Epsom salt is a hydrated magnesium sulfate compound, known for its use in bath soaks to soothe sore muscles and promote relaxation. While it does contain magnesium, research suggests that the body's transdermal absorption of magnesium sulfate is generally low compared to other forms. This means that while an Epsom salt bath can be relaxing, a spray made from it is unlikely to provide a significant boost in magnesium levels through the skin. For this reason, using Epsom salt for a spray intended to deliver a therapeutic dose of magnesium is less effective.
Magnesium Chloride (Magnesium Flakes)
Magnesium chloride is a different compound that is more readily absorbed by the body through the skin. Sources like the ancient Zechstein Seabed in Northern Holland are prized for their pure magnesium chloride flakes. This form is considered to have higher bioavailability for transdermal application, making it the superior choice for homemade magnesium sprays and body oils. The higher solubility and absorbability mean more magnesium can be delivered directly to the target area, offering more effective relief for muscle cramps and tension.
Why Magnesium Chloride is the Better Choice for Spray
The primary reason for opting for magnesium chloride over Epsom salt for a spray is its superior absorption rate. The chloride ion in magnesium chloride helps facilitate magnesium's absorption through the skin's dermal layers and into the bloodstream more efficiently than the sulfate ion in Epsom salt. This superior bioavailability translates to a more potent and effective product for topical application. Furthermore, some users report that Epsom salt can be more drying or irritating to the skin with frequent use compared to magnesium chloride.
Comparison: Epsom Salt vs. Magnesium Chloride for Spray
| Feature | Epsom Salt (Magnesium Sulfate) | Magnesium Chloride (Flakes) |
|---|---|---|
| Transdermal Absorption | Lower absorption rate; benefits are more localized and temporary. | Higher absorption rate; magnesium is more efficiently utilized by the body. |
| Best For | Soothing baths for temporary relaxation and muscle relief. | Creating potent topical sprays and oils for deeper magnesium replenishment and targeted relief. |
| Bioavailability | Lower bioavailability for transdermal use compared to magnesium chloride. | Higher bioavailability and longer-lasting effects for topical application. |
| Skin Feel | Can be more drying for some users with frequent application. | Generally gentler on the skin, especially in lotions and oils. |
| Cost | Typically more widely available and affordable. | Can be slightly more expensive, but more effective for topical use. |
DIY Recipe for an Effective Magnesium Chloride Spray
Creating your own effective magnesium spray is simple and requires only a few ingredients. The key is to use high-quality magnesium chloride flakes. For best results and to prolong the shelf life, use distilled water.
Ingredients:
- 1/2 cup magnesium chloride flakes
- 1/2 cup distilled water
- Glass measuring cup or bowl
- Glass spray bottle
- Essential oils (optional, e.g., lavender for relaxation)
Instructions:
- Heat the distilled water gently in a small saucepan. Do not bring it to a boil, just warm enough to dissolve the flakes.
- Pour the warm water into your glass measuring cup or bowl.
- Add the magnesium chloride flakes and stir continuously until they are completely dissolved. The solution will have an oily feel, even though no oil is present, which is why it is often called "magnesium oil".
- Allow the solution to cool completely to room temperature.
- If desired, add a few drops of your chosen essential oil and stir gently.
- Carefully pour the mixture into a clean glass spray bottle. A small funnel can help prevent spills.
- Store your finished spray in a cool, dark place. The shelf life is typically several months.
Using and Storing Your Homemade Spray
To use the spray, apply it directly to sore muscles, the soles of your feet, or your abdomen before bed for relaxation. Some people may experience a slight tingling or stinging sensation, especially during the first few applications. This is normal and usually subsides over time as your body's magnesium levels are replenished. If the sensation is too bothersome, you can dilute the mixture with more distilled water or wash it off after 20-30 minutes. Always perform a patch test on a small area of skin before applying it liberally.
Storage is straightforward. Since the mixture contains only magnesium chloride and water (with optional essential oils), it is best kept in a glass bottle away from direct sunlight. The mixture is stable and should last for several months, though using it regularly will ensure you get the most benefit.
Conclusion
While the impulse to use Epsom salt to make magnesium spray is understandable given its magnesium content, it is not the most effective ingredient for transdermal application. For a superior and more bioavailable product, magnesium chloride flakes are the recommended choice. By using magnesium chloride, you can create a potent, homemade spray that can effectively deliver magnesium to your body for muscle relaxation, stress relief, and overall well-being. This DIY approach not only saves money but also ensures you are using the most beneficial form of topical magnesium.
For more information on the efficacy of transdermal magnesium, you can consult studies like this one, Myth or Reality – Transdermal Magnesium?.
