What Happens if You Put Too Much Epsom Salt in a Bath?

Jessica Biel admitted that she takes a bath with 20 pounds of Epsom salt to prepare for Red Carpet events. 😱

Her beauty routine sparked much debate about whether it’s worth it to use that much salt and whether it’s safe.  So, here’s the deal — Epsom salt has soothing properties, but using too much (like, 20 pounds!!) can cause unexpected side effects and is ridiculously expensive. Let’s dive into what happens when you overdo it on Epsom salt and how you can create a perfectly balanced, relaxing bath.

What is Epsom Salt?

First, a little background. Epsom salt, also known as magnesium sulfate, is a mineral compound that dissolves in water. It’s been used for centuries to help relieve muscle tension, reduce inflammation, and even ease stress. Adding it to your bath is one of the most common ways to enjoy its benefits. However, like any good thing, moderation is key.

How Much Epsom Salt Should You Use?

The general guideline is to use 1-2 cups of Epsom salt in a standard-sized bathtub of warm water. This amount is enough to soothe your muscles, help you relax, and ease aches and pains without any negative effects. But what happens if you put more than this recommended amount into your bath?

Too Much Epsom Salt: What Could Go Wrong?

Using too much Epsom salt can lead to a few issues. While it might be tempting to dump in an extra cup for an extra boost of relaxation, your body and skin may not thank you for it. Here’s what could happen:

1. Skin Irritation or Dryness

One of the most common side effects of overusing Epsom salt is that it can cause your skin to become too dry. While it’s great for detoxifying and drawing out impurities, too much salt in the bath can strip your skin of its natural oils. This can leave your skin feeling tight, itchy, and dehydrated. For those with sensitive skin or conditions like eczema, this can be particularly irritating.

2. Dehydration

Magnesium sulfate has a detoxifying effect, meaning it pulls out impurities and excess water from your body. If you add too much salt and soak for too long, it can lead to dehydration. You may feel a bit lightheaded or fatigued after your bath. To avoid this, always drink plenty of water before and after your soak to stay hydrated.

3. Upset Stomach 

Epsom salt is actually used as a laxative when taken internally in small amounts. While you’re likely not drinking the bathwater, some of the salt can be absorbed through your skin, especially if you soak for long periods. If you use too much Epsom salt, this can result in mild symptoms like an upset stomach or diarrhea. It’s rare, but something to be aware of if you notice any digestive issues after your bath.

4. Muscle Cramping or Fatigue

While magnesium is known for helping with muscle relaxation, overdoing it can have the opposite effect. If you use an excessive amount of Epsom salt, you might experience muscle cramping or soreness. Your body needs a balance of minerals to function properly, and too much magnesium can throw off that balance. 

5. Changes in Blood Pressure

Magnesium plays a role in regulating blood pressure. In small, recommended amounts, Epsom salt can help lower blood pressure and promote relaxation. However, using too much might cause your blood pressure to drop too low, leading to dizziness or a feeling of weakness. If you have a condition that affects your blood pressure, it’s especially important to stick to the recommended amount of Epsom salt.

 How to Avoid Problems with Epsom Salt

If you want to avoid the side effects of using too much Epsom salt, here are a few simple tips:

1. Measure Carefully: Stick to 1-2 cups of Epsom salt per bath. This amount is plenty to give you the benefits without overloading your skin and body.

2. Keep Soak Time Short: Don’t stay in the bath for more than 15-20 minutes. This is enough time for your skin to absorb the magnesium without risking dehydration or irritation.

3. Moisturize After Your Bath: Epsom salt can be a little drying, so it’s important to follow up with a good moisturizer right after your bath. Look for one that’s rich and hydrating, especially if you have dry or sensitive skin.

4. Stay Hydrated: Drinking water before and after your bath is key to staying hydrated. Epsom salt can draw out water from your body, so replenishing that lost moisture is essential.

5. Test It Out: If you’re new to Epsom salt baths, start with a small amount and see how your body reacts. Everyone’s skin and tolerance levels are different, so listen to how your body feels after the bath.

Sorry Jessica, but moderation is key! We recommend using 1-2 cups per bath to give you all the benefits without the risk of side effects. Our Glo Body bath soaks come with little scoopers to help you measure the perfect amount for your bath.