Bring purpose and consistency to your haircare routine. The Horizon AHK-Cu Kit brings together a scientifically studied ingredient and a clearly organised eight-week format, presented with Horizon's signature attention to detail.

Prepared fresh for each batch. The AHK-Cu serum is presented in individually capped amber vials as part of your complete eight-week kit.

At its centre is AHK-Cu, a copper complex investigated for its effects on human hair follicles. A peer-reviewed laboratory study reported increased elongation of isolated human hair follicles and increased proliferation of dermal papilla cells — specialised cells involved in regulating hair growth.

The cited study examined isolated follicles and cultured cells. It did not test the finished Horizon kit or establish hair-regrowth results in people. Read the published study.

Eight individually capped serum vials. Eight microinfusion devices. Two signature Horizon boxes. A complete collection that gives your haircare routine a clear structure, from the first week to the eighth.