The full line

Everything we make

Copper peptide + mushroom serums, made in small batches every week in Missouri.

Topical · Skin & scalp

The serums

Three serums for skin that looks firmer, brighter and more even, and a scalp that feels clean and balanced — built on copper peptides and functional mushrooms.

SerumCopper Theory front label: 2% GHK-Cu (copper tripeptide-1), Tremella, sodium hyaluronate, 30 mLCopper Theory in a white airless pump bottle, navy-blue serum visible through the clear base
Copper Theory
2% GHK-Cu + Tremella Firming & Hydrating Serum
A firming, deeply hydrating facial serum. Copper Theory pairs a 2% dose of GHK-Cu (copper tripeptide-1), one of...
from $49.00View
SerumScalp Theory front label: AHK-Cu (copper tripeptide-3), caffeine, panthenol, 30 mLScalp Theory in a white airless pump bottle, steel-blue serum visible through the clear base
Scalp Theory
AHK-Cu Scalp & Hair Tonic
A lightweight, leave-in scalp tonic. Scalp Theory pairs AHK-Cu (copper tripeptide-3), the copper peptide studied specifically for hair...
from $49.00View
SerumVital Theory front label: Cordyceps militaris, niacinamide, Tremella, 30 mLVital Theory in a white airless pump bottle, amber serum visible through the clear base
Vital Theory
Cordyceps Radiance Serum
A lightweight radiance serum. Vital Theory pairs Cordyceps militaris with niacinamide (vitamin B3) and adenosine in a Tremella...
from $39.00View