Twelve deposits · milled in America

Twelve deposits. One ritual.

Clay pulled from twelve places on earth, each a different mineral, a different color, a different feel against skin. Nothing is dyed. The color is the ground it came from.

We mill, blend, and test every batch in our own plant. Nothing is bought finished with our name printed on it.

slot: hero-twelve-bowls · asset://spasilt/hero/primary

The standing line

Always available · 2 oz $48 · 8 oz $92
slot: clay-bentonite
American
Fort Benton, Wyoming

Bentonite

Volcanic ash, pale grey-green, the most absorbent clay we carry.

The only clay we sell that never crosses a border.
$48 / $92
slot: clay-kaolin
Cornwall, England

Kaolin

White, the gentlest of them. For skin that reacts to everything else.

Friendly export lane. Rarely delayed.
$48 / $92
slot: clay-french-green
Provence, France

French Green

Sea-bed minerals and iron oxide. Sage green, the classic clarifying clay.

EU export. Straightforward.
$48 / $92
slot: clay-australian-pink
Western Australia

Australian Pink

Iron-tinted kaolin, soft pink, gentle enough for daily use.

Long freight. Few complications.
$48 / $92
slot: clay-red
Morocco and France

Red Clay

Iron oxide illite, warm terracotta, for tired and dull skin.

Dual-sourced, which keeps it in stock.
$48 / $92
slot: clay-yellow
France

Yellow Clay

Mild iron oxide, ochre, brightening without abrasion.

EU export. Straightforward.
$48 / $92
slot: clay-fullers-earth
Rajasthan, India

Fuller's Earth

Multani mitti. Buff-grey, very absorbent, used in South Asia for centuries.

Indian mineral export documentation is slow.
$48 / $92
slot: clay-zeolite
Slovakia and Turkey

Zeolite

Volcanic, pale beige, a crystalline structure rather than a plate.

Standard EU and Turkish export paperwork.
$48 / $92
slot: clay-moor-mud
Austria and Hungary

Moor Mud

Peat-bog humic matter rather than mineral clay. Dark, warm, European spa tradition.

Peat extraction is environmentally regulated and seasonal.
$48 / $92

The Reserve

When a batch clears · 2 oz $78 · 8 oz $145

Three clays whose supply chains are genuinely difficult. We source them through licensed channels and pay the duty, which is why they are not always listed. When all three clear at once we release a numbered set of three — $390.

slot: reserve-rhassoul
Reserve
Atlas Mountains, Morocco

Rhassoul

Magnesium and silica rich, deep russet, silky enough to lather slightly in water.

Extraction and export are regulated by the Moroccan state. Batches clear on their timetable, not ours.
Join the waitlist below
slot: reserve-cambrian-blue
Reserve
Siberian Platform, Russian Federation

Cambrian Blue

Blue-grey, extremely fine, from Cambrian sediment. The rarest thing we carry.

Duties and banking restrictions make this the slowest clay we source.
Join the waitlist below
slot: reserve-dead-sea
Reserve
Dead Sea shoreline, Israel and Jordan

Dead Sea

Near-black, the highest mineral salt content of any source on earth.

Concession-controlled extraction from a shrinking source. Documentation travels with every batch.
Join the waitlist below

The infused line

2 oz $58 · 8 oz $110

The same clays, formulated with scent and spice in our own lab. We test what an addition actually does to a clay before we sell it, which is why this list is short and grows slowly.

Mineral shimmer is available on request and uses synthetic mica only. Natural mica has a documented child-labor problem in some mining regions, and we will not buy it.

How we source

Six steps, and we will tell you where every one of them stalls.

01We identify the deposit, not a supplier. We want to know which ground the clay came out of, because that determines the mineral profile and the color. A broker who cannot tell us that is not a supplier we use.
02We verify the export is clean. Some of these clays come from places where export is controlled or restricted. We use licensed channels and we pay the duty. This is the longest step, and it is why some clays are not always in stock.
03A sample reaches the lab before an order does. We buy a small quantity and test it. If it does not match what we were told, we do not place the order.
04We mill and blend in our own plant. Nothing is white-labeled. The clay you receive was processed by us, not bought finished with our name on the jar.
05Every batch is tested and recorded, and the record stays with the batch. If you ever need to know what was in the jar you bought, we can tell you.
06We pack, and the batch number goes on the label.

Steps one through three take months, not weeks, for a Reserve clay — and longer when an export permit is involved. We do not shorten that by buying from a broker who cannot say where the material came from.

When a clay is not listed as available, it is because a batch has not cleared these steps. Not because we are out of stock.

Coming to upstate New York

A clay house, in a town that could use one.

We are building in small towns, hiring locally, and paying properly. The clay is already ours; the rooms are next. Tell us where you would come and what you would come for — it decides where we build first.

Register

Tell us what you want and where you are.

We are not open yet and we will not pretend otherwise. Register and you hear first when a clay clears, when the infused line releases, and when a room is ready.

SpaSilt is a Proselyte Holdings company. Nothing here is for sale yet. Your details are used to contact you about SpaSilt and are not shared with anyone.