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Ancient Zechstein seabed · Netherlands
Magnesium chloride
An essential mineral the body relies on for normal muscle and nerve function. Ours is pure magnesium chloride from a protected underground seabed, massaged in at bedtime.
THE SCIENCE, SIMPLY
Every Plenny sleep product is built around one hard-working mineral. Here's what it is, where ours comes from, and why we put it on the skin instead of in a pill.

01
WHAT IS IT?
Magnesium is the mineral your muscles and nerves lean on to relax. When you're running low, it can show up as tight, twitchy muscles and restless nights.
That's why so many moms reach for it: during pregnancy for achy, restless legs and sleepless nights, and for little ones who wake again and again. Massaged in at bedtime, it helps the whole body let go and settle into sleep.

02
WHERE IS IT FROM?
Ours is naturally sourced from the Zechstein seabed in the Netherlands: an untouched underground reservoir left behind by an ancient sea.
It's prized for its purity, which is exactly what we want on our kids' skin.
03
WHY DO WE USE IT?
Massaged in as part of a bedtime routine, magnesium chloride supports relaxation and eases everyday muscle tension.
It helps little bodies, and big ones, settle in for the night.
TOPICAL MAGNESIUM
Transdermal simply means "through the skin." A 2016 study in Magnesium Research found topically applied magnesium passes through the skin, helped along by hair follicles.
Massage it into feet and legs and it's absorbed right where tired muscles need it. No pills or chewables, just a calming massage.
It skips the digestive system, so there's none of the stomach upset some people get from oral supplements.
Massage onto feet, legs, belly or back, wherever tension builds, as part of a calming ritual.
THE ROUTINE
1. Bath & dry
Start with clean, dry skin, right after bath time is perfect.
2. Dose by age
Follow the age guide on the bottle: Little Sleepers for 3m–3yrs, Original for 4yrs+.
3. Massage & snuggle
Massage into the bottoms of the feet until absorbed. Consistency is the key: most families use it every night.
WHAT'S INSIDE
Tap an ingredient or swipe to explore. Every study opens in a new tab.
01
Ancient Zechstein seabed · Netherlands
An essential mineral the body relies on for normal muscle and nerve function. Ours is pure magnesium chloride from a protected underground seabed, massaged in at bedtime.
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Cold-pressed · Sonoran desert shrub
Technically a liquid wax that closely resembles the skin's own oils, so it glides on and absorbs without feeling greasy. The base of almost every Plenny product.
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Organic essential oil
A daisy-like flower used in baby care for generations. Its apigenin and other flavonoids have been studied for their soothing, anti-inflammatory properties, and its soft scent helps set a calm mood.
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Organic essential oil
More than a wind-down scent. Lavender's main compound, linalool, has been studied for both calming and soothing effects on the body. Prefer no scent? Our Dream Creams come essential-oil free too.
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Boswellia tree resin · organic essential oil
Resin from the Boswellia tree, prized for centuries. It contains boswellic acids, among the most researched natural compounds for their anti-inflammatory activity. Carefully diluted for little ones.
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Copaifera tree resin · Amazon rainforest
Tapped from the Copaifera tree and naturally rich in beta-caryophyllene, a compound that works with the body's CB2 receptors and has been studied for its effects on inflammation and discomfort.
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Organic carrier oil
A light, non-greasy oil that stays liquid and carries our botanicals evenly in every roll.
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Pressed from mango seed kernels
An unrefined butter full of natural fatty acids and vitamins A, C and E. It's what gives our Dream Creams their rich, whipped feel.
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From the hive
A natural emollient that locks in moisture and gives our creams their soft, balm-like body, no synthetic thickeners needed.
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Pressed from castor seeds
A deeply hydrating oil rich in ricinoleic acid. The hero of our Early Morning under-eye roller for tired mamas.
Disclaimer: Information on our website is for educational purposes only and is not a substitute for medical advice, diagnosis or treatment. These statements have not been evaluated by the Food and Drug Administration. Plenny products are not intended to diagnose, treat, cure or prevent any disease. Results vary from person to person. All ingredients are listed; please review them for allergies. If you have a medical condition, take prescription medication, or are pregnant or breastfeeding, consult your physician before use.