With regard to the question of oil v water based - I was also wondering what the difference is and also Yes VM. I just asked the question on Google Chat and thought I would post here what it says just in case useful. I know I'm unsure myself which to use and very much need..
YES VM (Vaginal Moisturizer):
Purpose:
Primarily for long-term relief of vaginal dryness and irritation.
Mechanism:
It's iso-osmotic, meaning it matches the water concentration of vaginal tissues, releasing moisture only when the tissues need it, over an extended period (1-3 days).
Ideal for:
Daily use to maintain vaginal health, especially during menopause or when experiencing vaginal dryness.
Key feature:
Provides a slow, sustained release of moisture to rehydrate and soothe tissues.
YES WB (Water-Based Lubricant):
Purpose: To provide immediate lubrication during intercourse and reduce discomfort.
Mechanism: It's hypo-osmotic to iso-osmotic, meaning it releases water more rapidly than YES VM, providing a quick, slippery sensation.
Ideal for: Sex and situations where instant lubrication is needed.
Key feature: Provides a fast-acting, slippery surface for comfortable intercourse.
YES OB (Plant-Oil Based Lubricant):
Purpose: To provide a long-lasting, moisturizing lubricant, especially for extended periods of intimacy.
Mechanism: It's oil-based and formulated with plant oils, providing a richer, more moisturizing feel and longer-lasting lubrication compared to water-based options.
Ideal for: Situations where a longer-lasting, moisturizing lubricant is desired.
Key feature: Longer-lasting lubrication and a moisturizing feel.
In essence: YES VM is for sustained vaginal hydration, while YES WB and YES OB are for lubrication during intercourse, with YES WB providing a quicker, more immediate effect and YES OB offering longer-lasting lubrication.