Using vitamin C instead of boric acid due to breastfeeding

Boric Acid Vitamin C Vagina pH

I am leery of using boric acid with my bacterial vaginosis treatments because I am breastfeeding. Probably the amount of boric acid which would be absorbed into the blood and introduced to the milk would be negligible, but I’d just prefer to avoid boric acid for now if possible.  Would Vitamin C be n OK substitute to perform the acidifying effect? 

Boric acid does more than just acidify the vagina – according to research [1. S.M. Prutting and J.D. Cerveny, Boric Acid Vaginal Suppositories: A Brief Review, Infectious Diseases in Obstetrics and Gynecology 6:191-194 (1998) (C) 1998 Wiley-Liss, Inc.], boric acid has a bacteriostatic and fungistatic action (against fungi and bacteria), but they aren’t sure why, despite boric acid being a very weak acid that works at about the same pH as the vagina – it means it has more to it than just its acidity, which is why it’s very useful for the vagina.

However, vitamin C will work probably better to acidify the vagina since it is slightly more acidic, so yes it is safe to use as an alternative.

  • Vitamin C pH = 3
  • Boric Acid pH = between 7 and 10
  • Healthy Vagina = 3.5-4.5
Boric Acid Vitamin C Vagina pH


(1) USD $34.95

Specially formulated probiotic for vaginal application to promote a healthy vaginal microbiome.

(8) USD $44.95

Naturopath-developed 100% natural, effective BV treatment.

(8) Original price was: USD $9.95.Current price is: USD $0.00.

Unique, comprehensive BV, AV and 'mystery bad vag' treatment guide, one-of-a-kind system, with effective, innovative treatments.

SHARE YOUR CART