The vaginal ecosystem is a precisely calibrated microbiome dominated by Lactobacillus species. These bacteria metabolise glycogen into lactic acid, maintaining a pH between 3.8 and 4.5 — acidic enough to suppress pathogenic organisms including Candida albicans (the yeast responsible for thrush) and Gardnerella vaginalis (the primary agent in bacterial vaginosis). This self-regulating system is remarkably effective when left undisturbed.
Standard bar soap and shower gel have a pH between 9 and 11. Even mild liquid soaps sit around 7 — nearly a thousand-fold more alkaline than the vaginal environment (pH is a logarithmic scale). Regular use of these products in the intimate area raises local pH, creating conditions where Lactobacilli struggle to compete. A 2018 study in BMC Infectious Diseases found that women who used regular soap for intimate hygiene were 3.5 times more likely to develop bacterial vaginosis than those using pH-matched alternatives.
Genevia's Evita Intimate Wash is formulated at pH 4.5 to match the upper boundary of the healthy vaginal range. The wash uses a mild surfactant system — free from sodium lauryl sulphate (SLS) — that cleanses without stripping the natural acid mantle. Lactic acid is included as a pH buffer, ensuring the product remains within the target range even when diluted with shower water.
The formula also contains Aloe Vera for its anti-inflammatory and moisturising properties, which is particularly beneficial for women experiencing dryness due to hormonal changes, menopause, or medication side effects. Dermatological testing confirmed no irritation or sensitisation in clinical volunteers, and the product is free from parabens, artificial colourants, and aggressive preservatives.
For women who prefer a lighter application, Genevia also offers the Evita Intimate Wash Foam — a mousse-format cleanser with the same pH-balanced formulation but with a self-foaming pump that requires less product per use and rinses away faster. Both formats are designed for external use only and are safe for daily use throughout the menstrual cycle, during pregnancy, and postpartum.
Gynaecologists increasingly recommend pH-specific intimate hygiene as a frontline preventive measure, particularly for women prone to recurrent infections. Combined with breathable cotton underwear and avoidance of douching, a pH-matched wash is one of the simplest evidence-based steps for maintaining intimate microbiome health.