Clinitas Hydrate Liquid Gel Clinitas Hydrate Liquid Gel rapidly spreads across the cornea to reduce friction & provides lubrication by boosting the aqueous layer & releasing bound moisture. This product can be used overnight & on wakening. Clinitas Hydrate is particularly good for episodic dry eye discomfort caused by: Environmental factors including wind & pollution. Hormonal medications such as HRT & anti-histamines.