500mL THERMAE Magnesium Bath Tonic
Ancient Roman Baths
500mL THERMAE Magnesium Bath Tonic
Ancient Roman Baths
Bath Tonic
500mL THERMAE Magnesium Bath Tonic
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Inspired by the ancient Roman baths, where mineral-rich waters offered sanctuary for both body and mind. This deeply restorative soak blends herbaceous rosemary to refresh, grounding cypress to restore, and bright bergamot for a subtle citrus lift.
A ritual of renewal and strength - best savoured after a long day, when your body aches for rest.
How it feels
A warm, green, citrus-tinged breeze rising with the steam. Ancient ritual. Modern restoration.
- Aromatherapy benefits – grounding and restorative
- Magnesium-rich to ease tired muscles and support better sleep
- Ultra-hydrating and skin-softening formula
- No artificial fragrance, colour, or preservatives
-
Made in Melbourne with care
Measure 100 mL with ease using our Bath Tonic Measuring Cup.
Immerse yourself in a luxurious, mineral-rich bath where the opaque milky water creates a sense of privacy and helps:
• Relieve muscle aches, leaving you revitalised
• Support your body's natural healing mechanisms
• Improve sleep quality
• Prioritise physical and mental wellbeing
• Support stress, enhancing relaxation
• Hydrate and nourish your skin
• Reduce post-workout recovery time
BATH
Add 100 mL to warm, swirling water. Remove jewellery, slip in and relax for at least 20 minutes.
To enhance your experience, decant 100 mL into a small bowl, add a small amount of warm water (1 tbs) and swirl it gentle. Pour the contents into the tub, and as you do, take three deep breaths, savouring the moment as the white mineral cloud gracefully envelops the clear water.
FOOT BATH
Add 30 mL into 5 L warm, swirling water. Immerse feet, relax and enjoy for at least 20 minutes.
Average quantities of minerals in 100 mL of liquid tonic. We recommend 100 mL liquid tonic per bath.
| Natural Mineral | mg/100mL | mg/1000mL (ppm) | Function |
| Mg Magnesium | 5,000 | 50,100 | Helps relax, reduce anxiety, ease stress. Supports muscle recovery, nerves, heart health and strong bones. |
| Cl Chloride | 15,350 | 153,500 | Helps relax, reduce anxiety, ease stress. Supports muscle recovery, nerves, heart health and strong bones. |
| K Potassium
|
127.9 |
1279 | Helps reduce anxiety and stress, regulates heart rhythm, muscle contractions, and fluid balance. |
| B Boron
|
2.4 | 22.4 | Supports bone health, brain function, and hormonal balance. |
| Si Silica
|
<100 | <1000 | Promotes healthy skin, hair, nails, and connective tissues. |
Each single soak contains 100 mL of the world's purest source of natural magnesium chloride and carefully selected botanical oils.
Our ingredients undergo meticulous testing to ensure their purity, authenticity, and quality.
Derived exclusively from natural sources and the earth itself.
• Vegan Friendly
• Made in Melbourne
• Female Founded
| What’s in it | Where it’s from | What it is |
| Natural Magnesium Chloride | Ancient Zechstein Seabed | Essential Mineral |
| Helianthus Annuus Seed Oil | Sunflower Seed | Skin Moisturiser |
| Cocamidopropyl Betaine & Polyglyceryl-10 Laurate | Coconut | Skin Cleanser |
| Hydroxypropyl Starch Phosphate | Corn | Thickener |
| Titanium Dioxide | Anatase | Mineral Thickener & Pigment |
| Pure Essential Oils | Plant Derived | Aromatherapy Fragrance |
Purified Water, Magnesium Chloride, Helianthus annuus (Sunflower) Seed Oil, Cocamidopropyl Betaine (Coconut Derived), Polyglyceryl-10 Laurate (Derived from Coconut, RSPO Certified Sustainable Palm Oil), Hydroxypropyl Starch Phosphate (Corn Derived), Titanium Dioxide, Bergamot Oil, Lemon Oil, Rosemary Oil, Cypress Oil, Petitgrain Oil, Basil Oil, Sage Oil.

WHAT OUR CUSTOMERS ARE SAYING
I was so excited to receive my order!
The packaging was beautiful and well thought out.
The satisfaction of the measuring cup fitting on to the bottom of the bottle was amazing (that’s my ocd talking)
I wanted to have a bath immediately- but I waited for 2 days, I wanted time to really savour the experience- I did open the bottle and do the sniff test… divine.
It’s bath day and I run the steaming water, measured out my tonic and poured it in.
Once in the bath I slid back and lay down.
And then I waited.
And waited.
I still felt tense 😬- perhaps I am too stressed I thought, too wound up?
I waiting some more, then as my mind wandered away from me there was a little niggle in my brain.
Suddenly it was like someone had flicked a switch, my muscles felt relaxed, my mind was calm… somewhere in the muddle of my brain making to-do lists and reciting song lyrics my body had let go of all its stress without me consciously thinking about it.
I will be a customer for life.
Thank you
Delivery received quickly. No problems. Giving it as a Christmas gift. Arrived well packaged.
I am enjoying this scent as an uplifting recharge. Definitely putting this in my regular rotation
This is not just a bath tonic — it’s an experience. A moment of calm. A ritual of beauty. A gentle ceremony that brings you back to centre and reminds your body how to rest.
The smell is amazing!
Our ensuite has no door and i love the way the smell of the bath tonic sits in the air long after the bath is emptied. It adds a whole new level to the whole experience.