Quote Originally Posted by el wacho View Post
does it stain / tan? just curious if the sod. sulfite prevents this.
it doesn't stain because sulfite in 2nd bath. but it will produce some stain if you omit sulfite. note that in this case 2nd bath is more like as one shot

Quote Originally Posted by el wacho View Post
what would your opinion be about reformulating for catechol ( substituting the pyro )?
phenidone+catechol is less active that P+Pyrogallol
you can try next formula

bath A
Sodium sulfite 50g
Glycine 5g
Phenidone 0.2g
Catechol 5g
Water 1l

bath B - sulfite+carbonate. 3min in each bath

Quote Originally Posted by el wacho View Post
have you looked to see if there is any development in A bath?
after 3min in bath A no any image

Quote Originally Posted by el wacho View Post
congrats on your formula.
thank you