Extenze Premium Silicone Based Lubricant 3.9oz/111g bottle. The silicone formula does not break down in water so you can even use it in the shower, hot tub, spa, or wherever the mood hits you. Like Extenze Male Enhancement Supplement, Extenze Personal Lubricant. With its new herbal bled, expect thrills adn excitement, works under water with a fresh scent. May be used with extenze male enhancement products to maximize your potential! New from Wet Extenze. Item # WT-EX-55554.