Hair dye Recipe

Recipe from The Secretes of Alexis of Piemont... Fol. 76

To make heare [hair] as yelow as golde
Take the vyne or the scrappynges of Rubarbe, & stepe it in white wyne, or in cleare lye; and after youhave washed your head with it, you shall weate [wet] your heares [hairs] with a sponge or some other cloth, and lette them drye by the fyre, or in the Sunne; after this weate [we] them and drye them agayne: for the oftener you dooe it, the fairer they wyll bee, without hurting your head anye thyng at all.

It's unclear whether 'clear lye' is an actual lye, and what strength it might be at. More tomorrow about the lyes; there's one set of Italian instructions that suggests making a lye for women to wash their bodies and privy parts! by boiling ash in water and then straining it; how strong a lye that might be, I don't know.