...we made/offered the Eyebright without Cayenne and provided either the 'Dr Christopher amount' or the 'Dr Schulze amount' on the side.
There's no WAY for you to "guestimate" how much Cayenne tincture goes in the bottle - that's a very precise measurement (and it's based on the 'hotness' of whatever cayenne you're using). So the 'precise measurement' would be different for varying heat levels of cayenne.
Methinks the best solution would be for us to just send you another bottle with the 'Dr. Christopher amount' already mixed in. Email/PM me with which size bottle you have (and if there's anything else you're needing to order so you can save on shipping if you wanna), and I'll have Rocky get it on it's way tomorrow.