Small-batch release · Orders are open · Next batch ships September 19, 2026 Shop the current batch

Compare Hair & Scalp Serums

Find the right hair and scalp formula.

Choose by application area and formula preference—not by assuming that the highest percentage is automatically the best fit. Every option uses a disclosed formula and has its own full documentation page.

Follicle Fuel

1.0% AHK-Cu · Full scalp · Daily

A simple full-scalp step for a fuller-looking, well-conditioned hair appearance.

Root Surge

2.5% AHK-Cu · Targeted areas · Daily

The highest-concentration option for a more focused routine at the temples, part line, or crown.

Root Matrix

1.0% AHK-Cu + 0.5% GHK-Cu · Full scalp · Advanced / daily

Two transparent copper-peptide actives in one focused hair and scalp formula.

Still deciding?

Read the complete ingredient lists, directions, storage guidance, and routine expectations before choosing.