HERBAL CREAM FORMULATION: A REVIEW OF THERAPEUTIC POTENTIAL

The growing interest in plant-based topical preparations has encouraged the development of polyherbal formulations in which botanicals with different phytochemical profiles are incorporated into a single pharmaceutical or cosmetic system. The present review examines the formulation and evaluation of a polyherbal cream prepared from Neem (Azadirachta indica), Tulsi (Ocimum sanctum), Aloe vera (Aloe vera), and Turmeric (Curcuma longa). Each of these medicinal plants has been investigated for biological properties that may be relevant to topical use. Neem and Tulsi have been associated with antimicrobial, antioxidant and anti-inflammatory effects, whereas Aloe vera is widely investigated for its moisturizing, soothing and skin-supportive characteristics. Turmeric, particularly its curcuminoid fraction, has received considerable research attention because of its antioxidant, anti-inflammatory and antimicrobial potential. The literature further indicates that the nature of a plant extract is strongly influenced by the extraction solvent, plant material, processing conditions, extraction duration and concentration of the resulting extract. Reported methods for the selected botanicals include aqueous and alcoholic extraction, maceration, Soxhlet extraction, methanolic extraction and mechanical recovery of Aloe vera gel. A formulation study specifically involving Neem, Tulsi, Aloe vera and Turmeric describes their incorporation into a semisolid cream containing liquid paraffin, beeswax, borax, methylparaben and distilled water. However, the individual quantities of the four herbal extracts in the final cream were not clearly stated in the available formulation report; therefore, these amounts should be established experimentally rather than inferred. Appropriate evaluation of the finished product may include assessment of appearance, colour, odour, homogeneity, pH, viscosity, spreadability, emulsion type, after-feel, washability, centrifugation behaviour, spectrophotometric characteristics, stability and microbial quality. Overall, the available literature supports further investigation of this four-herb topical system, while also emphasizing the need for controlled extraction, extract standardization, reproducible formulation procedures and systematic quality evaluation.