Fourth Era -
Waterless skincare
100% active ingredients. 0% water. 0% fillers. Waterless skincare, done properly
Waterless skincare - concentrated like nothing you've used before
Most cosmetics are 60–80% water – a cheap filler that dilutes the actives and forces brands to add preservatives. Fourth Era UNDILUTED™ refuses that trade-off. Every product is 100% active plant ingredients. No water, no parabens, no compromises. For skin that deserves the real thing.
For skin that deserves the real thing.
Discover the waterless line -
8 concentrated formulas
100%
0%
1
100%
✓ Vegan
✓ pH-conscious
✓ Microbiome-friendly
✓ Patented
✓ Transparent & Authentic
Why waterless skincare from Fourth Era is genuinely better
Conventional skincare has a quiet lie at its core: 60–80% water, propped up by preservatives to keep it from spoiling.
The result? Less than 5% real actives in the cream you just paid for.
❌ Conventional skincare
- 60–80% Water
- Preservatives required
- <5% actives
- Shorter shelf life
- Hard on the microbiome
- Hard to dose accurately
✓ Waterless skincare
- 0% water
- No preservatives needed
- 100% actives
- Stable for years
- pH-conscious & microbiome-friendly
- A little goes a long way
What are you really putting on your skin today?
Behind alluring names and beautiful jars often lies a complex world of ingredients.
Do you know exactly what your skincare products are doing?
Use our Ingredient Check to take a look behind the scenes of the cosmetics industry.
We decode the technical terms for you – from valuable antioxidants to the fillers your skin doesn’t need.
Get ready for an “wow” moment.
ChatGPT then opens—simply press Ctrl + V..
Find your fit
Skincare isn’t one-size-fits-all. See how Fourth Era is built for the moment you’re in.
Menopause
Hormonal Balance &
Skin Changes
Sensitive skin
Abbie without
Lavender & Rosemary
Pregnancy
Babies & kids
What is Fourth Era
Fourth Era is a waterless skincare brand built on a simple, almost stubborn idea: skincare should be made of actives, not water.
For decades, the industry has shipped products whose first and largest ingredient is water – a cheap filler that demands preservatives and squeezes the actives down to a sliver. Fourth Era breaks that pattern.
Under the UNDILUTED™ name we make products that are 100% active plant ingredients: oils, butters, extracts and functional actives – without a single drop of water, without parabens, without preservatives.
Fourth Era is here to prove that skincare without compromise is possible
No marketing fictions, no fillers, no hidden ingredients.
Just what your skin actually needs, at the highest concentration we can get it.
That’s Fourth Era.
Ready to feel what waterless skincare actually does?
Fourth Era Membership
As a member, benefit from exclusive discounts and products.
Free Shipping
Shipping is free on orders with a total value of $ 150 or more.
Laboratory Tests & Patents
The products are based on verifiable standards and innovative systems, such as LEON's patent-pending oil-to-milk system.
Blossom into a New You!
Fourth Era Membership
For Free
A skin guide for routines that find their natural balance
Questions & answers about Fourth Era
What is Fourth Era?
Fourth Era is a waterless skincare brand under the UNDILUTED™ name - built on the principle that skincare should be 100% active ingredients, with no water, fillers or preservatives. The line covers eight products for every skin type and life stage.
What does UNDILUTED™ mean?
Literally, "undiluted". Every product is made of concentrated, active plant ingredients with zero water added. The name is the promise: no hidden fillers, nothing dishonest on the label.
What is waterless skincare?
Waterless skincare contains no water as an ingredient - which means it doesn't need synthetic preservatives, and every ingredient pulls its weight. By contrast, conventional creams are 50–90% water, which dilutes the actives down to a fraction of their potential.
What is Fourth Era's goal?
To move skincare into its fourth phase: away from water-based filler products, toward concentrated, transparent skincare with no compromises. The drive is honesty about ingredients and respect for skin.
What does "the fourth era" of skincare mean?
The fourth era is the next step in skincare's evolution: after synthetic chemistry, the natural-cosmetics movement, and the active-ingredient era comes waterless, 100% concentrated care. Fourth Era is built to lead it.
Which products are in the Fourth Era line?
Who is Fourth Era for?
Anyone who wants to give their skin the real thing - men, expecting parents, people with eczema, athletes, women in menopause. The line covers specialised formulas for every skin type and every stage of life.
Is Fourth Era natural skincare?
Yes. Every Fourth Era UNDILUTED™ product is built on plant-based actives - no silicones, no parabens, no synthetic preservatives. Going waterless makes chemical preservatives unnecessary by design.
What is the Fourth Era membership?
A subscription that delivers UNDILUTED™ products automatically every two months, in four tiers from €95/month (M1) to €365/month (M4 Family). Members get a monthly value voucher and exclusive access to the HADES pH deodorant.