Only what belongs.
The products you use every day deserve a higher standard. We make them accordingly.
Presence
Designed to be seen. Refined to the essential.
What stands in sight all day must earn that place: quiet, proportioned, good in the hand.
Substance
Natural ingredients. Durable materials. Nothing unnecessary.
High grade, barely processed, and free of plastic — because what touches your body every day should leave no micro- or nanoplastics behind.
Purpose
Daily habits. Better choices. Lasting health.
Care repeats twice a day for a lifetime; the body keeps the account.
Pure, and held back.
Rein is a Dutch word for pure — clean in the plain sense: nothing added, nothing left behind.
In English, a rein is what holds a horse back. Both meanings apply here. The products should be clean; making them asks for restraint.
That our first product has horsehair bristles is a coincidence. A good one.
The name is also the working test: if a part, an ingredient, or a word does not make a product cleaner or calmer, it stays out.
What you may hold us to.
- Science-based
- Claims carry sources. The blog lists every study we lean on.
- Transparent
- Materials, trade-offs, and care are stated plainly — also when they do not flatter us.
- Independent
- No sponsors, no paid placement. We sell only what we chose ourselves.
REIN is a small studio in Amsterdam.
We develop one product at a time, and finish it before the next is begun.
We answer our own mail.