Soaking in Magnesium and Lithium for Deep Stress Relief
11/05/2026
Skip to content
11/05/2026
We’ve all been there—staring at a laptop screen at 3 PM, feeling like our brain has too many tabs open, while our shoulders are slowly migrating toward our ears. Modern stress is a bit of a joke; our nervous systems are reacting to a passive-aggressive Slack message with the same "fight or flight" intensity our ancestors used to outrun a literal lion. It’s exhausting, it’s a little bit ridiculous, and it’s why we’re all looking for a way to hit the reset button without having to move to a remote cabin in the woods.
At Flewd Stresscare, we’ve spent a lot of time thinking about how to fix this disconnect. We know that we can’t always change our schedules, but we can change how our bodies handle the fallout. One of the most effective ways we’ve found to do that is by returning to something humans have done for thousands of years: soaking in mineral-rich water.
This isn't about a basic bubble bath with a scented candle. We’re talking about the science of transdermal nutrient delivery—basically, using our skin as a high-speed highway to get essential minerals exactly where they need to go. In this guide, we’ll explore why magnesium and lithium are the "dream team" for our nervous systems, how they differ from standard bath salts, and how a 15-minute soak can help us feel human again.
Can't decide? You don't have to! Give all four soaks a try with the soak stan favorite, the Stresscare Sampler 12-pack.
Shop the sampler
When we talk about soaking in minerals, we’re really talking about balneotherapy. It’s a fancy term for a suuuuuper old practice: traveling to natural hot springs to "take the waters." People didn't just do this for the aesthetic; they did it because those natural springs are loaded with minerals like magnesium, lithium, calcium, and potassium.
In the modern world, we don’t always have the luxury of jetting off to a volcanic spring in Iceland. Most of us are lucky if we get 20 minutes of peace in our own bathrooms. That’s why we’ve focused on bringing that specific mineral profile into the home. But not all minerals are created equal. To understand why soaking in magnesium and lithium works, we have to look at how our skin actually interacts with these elements.
Our skin is our largest organ, and it’s surprisingly porous. While its main job is to keep things out, it’s also very good at letting certain things in—a process called transdermal absorption. This is why nicotine patches or hormone creams work. When we soak in a warm bath filled with the right minerals, we’re bypassing the digestive system entirely.
This is a big deal because many of us have "angry guts." Between coffee, stress, and processed foods, our digestive tracts aren't always great at absorbing minerals from supplements. When we take a magnesium pill, a lot of it gets lost in the "transit" process, and too much of it can lead to... well, a very urgent trip to the bathroom. By soaking, we let our skin drink up the nutrients, delivering them directly to our bloodstream and tissues where they can start working immediately.
Magnesium is the undisputed heavy hitter of the mineral world. It’s involved in over 300 biochemical reactions in our bodies. It helps regulate our heartbeats, keeps our bones strong, and—most importantly for us—tells our nervous system to pipe down.
When we’re stressed, our bodies dump magnesium. It’s like we’re burning through our "calm fuel" just to keep up with the demands of the day. This creates a vicious cycle: stress depletes magnesium, and low magnesium makes us more reactive to stress. Soaking in magnesium helps break that cycle by replenishing those stores.
If we’ve ever bought a bag of "bath salts" at the grocery store, we’ve likely bought magnesium sulfate, also known as Epsom salt. While Epsom salt is fine for a basic soak, it’s not the gold standard. At Flewd, we use magnesium chloride hexahydrate. It sounds like a mouthful, but it’s actually a much more bioavailable form of magnesium.
Bioavailability just means how much of a substance our body can actually use. Magnesium chloride is more easily absorbed through the skin than the sulfate version. It stays in the body longer and is less "harsh" on the skin. While Epsom salt can sometimes feel drying, magnesium chloride actually helps support the skin barrier.
Key Takeaway: If we want the most "bang for our buck" in the tub, we should look for magnesium chloride. It’s the form our bodies recognize and absorb most efficiently.
Now, let’s talk about lithium. For many of us, the word "lithium" brings up images of heavy-duty pharmaceutical drugs. But lithium is actually a naturally occurring trace mineral found in soil, water, and even some vegetables. In very low doses—the kind we find in natural springs—it’s been shown to have a profound effect on our mood and cognitive health.
Low-dose lithium is like a stabilizer for the brain. It can help support the "plasticity" of our neurons, meaning it helps our brains adapt to stress rather than breaking under it. Many people report that soaking in lithium-rich waters provides a sense of "quiet" that magnesium alone doesn't quite reach. It doesn't make us feel drugged; it just makes the world feel a little less loud.
Research suggests that trace amounts of lithium can help protect the brain from the damaging effects of high cortisol (the stress hormone). When we’re chronically stressed, our brains can actually start to shrink in certain areas. Lithium may help counter that by promoting the growth of new brain cells and protecting the ones we already have. It’s essentially "brain food" that we can absorb right through our skin.
When we combine magnesium and lithium, we’re not just adding two things together; we’re creating a "mineral cocktail" that addresses stress from two different angles.
In our Fatigue Defeating Soak, we use potassium and vitamin B6 alongside magnesium to help with energy recovery, but for those of us looking for that deep, hot-springs-style calm, the magnesium-lithium duo is hard to beat. It’s the difference between just "resting" and actually recovering.
We didn't want to just make another "pretty" bath product. We wanted to create something that actually did something. Founded in 2020, we saw how the world was collectively losing its mind, and we knew that a lavender-scented bomb wasn't gonna cut it.
Every Flewd Stresscare soak is built around that highly bioavailable magnesium chloride hexahydrate foundation. But we don't stop there. We know that stress isn't a one-size-fits-all problem. Sometimes we’re "anxious-stressed," sometimes we’re "angry-stressed," and sometimes we’re just "sad-stressed."
Our formulas are tailored to those specific symptoms. For example:
By combining these targeted nutrients with the power of magnesium and lithium, we’re giving our bodies a comprehensive toolkit for stress recovery.
If we’re gonna do this, we should do it right. Soaking in magnesium and lithium isn't difficult, but a few small tweaks can make a big difference in how much we actually absorb.
We often think the hotter the bath, the better. But if the water is too hot, our bodies start to sweat to cool down. When we’re sweating, we’re pushing things out of our pores, not pulling them in. For maximum mineral absorption, we want the water to be "warm-hot"—comfortably toasty, but not so hot that we’re gasping for air or turning bright red.
It takes a few minutes for our skin to adjust and start the absorption process. We recommend staying in for at least 15 to 30 minutes. This is a great time to listen to a podcast, read a book, or just stare at the ceiling and contemplate why we ever thought we needed five different streaming services.
This is the one people usually get wrong. After a Flewd soak, there’s no need to rinse off in the shower. The minerals we’ve just absorbed are still sitting in the upper layers of our skin, and they can continue to be absorbed for several hours after we get out. Plus, our formulas are non-toxic, vegan, and biodegradable, so they aren't leaving any nasty residue behind. We just pat dry with a towel and go about our business (or go straight to bed).
One soak is great. It’ll help us sleep better tonight and probably make us feel a lot less "stabby" tomorrow. But the real magic happens when we make it a routine.
Stress is a chronic condition in our society. It’s not something that happens once and then goes away. It’s a constant drip-drip-drip of cortisol and adrenaline. By regularly soaking in magnesium and lithium, we’re building up a stress tolerance buffer. We’re keeping our mineral levels high so that when the next "urgent" email hits our inbox, we have the internal resources to handle it without a total meltdown.
We’ve seen it in our community of over 100,000 customers. People start using our soaks because they’re in a crisis—they can’t sleep, or their anxiety is through the roof. But they keep using them because they realize that they just feel better overall. Their moods are more stable, their muscles are less twitchy, and they have more energy for the things they actually enjoy.
"Our nervous systems weren't built for the 24/7 grind. Soaking isn't just self-care; it's a necessary physiological reboot."
When we talk about soaking in magnesium and lithium, we often run into some common misconceptions. Let's clear those up.
Not all salts are the same. Table salt (sodium chloride) will make us feel like a piece of pasta. Epsom salt (magnesium sulfate) is a basic muscle relaxant. Magnesium chloride and lithium are nutrient treatments. There is a massive difference between "seasoning" a bath and "fortifying" it.
As we mentioned before, digestion is a messy process. A lot of magnesium supplements are formulated with magnesium oxide, which is essentially a laxative. It’s very poorly absorbed. Transdermal delivery is a much more direct way to get the nutrients into our systems without the GI drama.
We get it. We’re busy. But 15 minutes is less time than most of us spend scrolling through social media before bed. It’s about prioritizing the 15 minutes that will actually make us feel better over the 15 minutes that will just make us feel more stressed.
We also care about the planet we’re stressing out on. A lot of bath products are loaded with microplastics, synthetic dyes, and parabens that are terrible for our skin and even worse for the water system.
At Flewd, we use 99% natural ingredients. Our formulas are paraben-free, phthalate-free, and biodegradable. Even our packaging is made from 100% PCR (post-consumer recycled) materials. We want the only thing being "smashed" or "destroyed" to be your stress—not the environment.
Since we don't always need the same thing, we encourage people to Build Your Own Bundle (BYOB). Maybe on Mondays we need the Rage Squashing Soak because the morning meeting was a disaster. By Thursday, we might need the Ache Erasing Soak because we finally made it to the gym.
By having a variety of mineral treatments on hand, we can respond to our stress in real-time. It’s about taking control of our well-being rather than just being a passenger in our own stressed-out bodies.
Soaking in magnesium and lithium is one of the most effective, science-backed ways to tell our nervous systems that it’s okay to stand down. By bypassing the gut and delivering these essential minerals directly through the skin, we can address the physical and mental toll of stress in as little as 15 minutes. Whether we’re dealing with racing thoughts, muscle tension, or just a general sense of being "done," these minerals provide the reset we need to keep going.
Stress is inevitable, but staying stressed is a choice we don't have to make.
If we're ready to stop feeling like a vibrating wire and start feeling like a human again, it’s time to get in the tub. Our Stresscare Trio is a great place to start, offering a curated selection of our most popular mineral treatments to help us find our way back to calm.
Yes, when we’re talking about the trace amounts found in natural springs and our mineral soaks, it’s generally considered safe for daily use. These are micro-doses designed to mimic nature, not the high-dose pharmaceutical versions used in clinical settings. If we have any underlying health conditions or are pregnant, it’s always a smart move to chat with a doctor first.
Absolutely. Magnesium chloride is actually very soothing for the skin, and we’ve formulated our soaks to be 99% natural and free from harsh chemicals. If we’re suuuuuper sensitive, we even offer fragrance-free versions of our popular soaks to ensure we get the mineral benefits without any irritation.
While everyone is different, many of our users report feeling the benefits for up to 5 days after a single soak. Because we’re replenishing the body’s internal mineral stores, the effect is more "long-term" than just a temporary moment of relaxation. Consistency is key, though; regular soaks help maintain those levels over time.
While magnesium and lithium are calming, they don’t work like a sedative. Instead of "knocking us out," they help remove the "static" of stress so our bodies can function normally. If we soak before bed, we’ll likely find it easier to fall asleep because our nervous system is relaxed, but if we soak in the afternoon, we’ll just feel more centered and capable.