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Tazarotene is a third-generation retinoid applied topically for the treatment of psoriasis and acne. But its applications are limited due to its poor solubility and bioavailability. The current investigation aimed at the development of solid lipid nanoparticles (SLN) of Tazarotene for effective topical delivery. Depending on the solubility, stability, and compatibility lipids and surfactants were selected and further optimised. SLN of Tazarotene was developed by hot-homogenisation followed by probe sonication method. Preformulation studies were carried out and compatibility was confirmed with FTIR. The design of the expert, Box Behnken model was implemented and the surface response curve was plotted. Glyceryl monostearate was found to be the best lipid and a combination of tween-span as a surfactant for SLNs. The entrapment efficiency was found as 59% and the particle size of 470 nm was reported. The optimised batch showed the zeta potential of −10.3 Mv with a drug release of 59% to 77% after 6 h.

Design and development of solid lipid nanoparticles of tazarotene for the treatment of psoriasis and acne: a quality by design approach