ex. Vasaline. They are lubricating, occlusive, greasy. Use on non hairy area.
less greasy, drying effects, not occlusive, can sting, more likely to cause irritation due to fragrance.
less greasy, less occlusive, may contain alcohol, penetrate easily, little residue
less stinging than lotions or solutions
may contain alcohol, greaseless, least occlusive, dry quickly.
spread readily, easier to apply, more expensive.
aerosols, pump spray.
These drugs decrease inflammation, localized anit-inflammatory effect.
most effective & widely use acne product, acts in ways to prevent closure of pilosebaceous duct, available in 2.5-10% concentration otc, up to 20% Rx. Gels are most effective: also available in lotions, creams, cleansers, masks, soaps. may take 4-6 weeks of consistant use for full effect.