Water-based. HydraForce is the 4 oz in this shop.
The problem this search actually is
Dry silicone grabs.
What to buy
HydraForce Lubricant ($24.95). A 4 oz water-based lubricant. Store page says glycerin-free and silicone-safe.
Red Tiger ($24.99). Three silicone rings. The store does not publish inner diameters.

Mammoth Force
HydraForce Lubricant
4 oz water-based lube. Store says glycerin-free and silicone-safe.
4.6 from 15,000+ reviews
Free shipping over $50 • Discreet packaging • Ships from Huntington Beach, CA

Mammoth Force
Red Tiger
Three silicone rings. The store does not publish inner diameters.
4.6 from 15,000+ reviews
Free shipping over $50 • Discreet packaging • Ships from Huntington Beach, CA
What not to buy
Silicone lube as a dressing aid on these rings.
If you are still comparing brands
The head-to-head pages live under vs . Alternatives to a named device live under alternatives . Measure before you order a ring: sizing guide .
Safety
HydraForce’s store page says it is water-based, glycerin-free and silicone-safe. Silicone lube can damage silicone rings. Do not put silicone lube on these rings.
