Formulation and Evaluation of Herbal Shampoo Enriched with Allantoin and Patchouli extract

Abstract

Background: Hair care, an ancient practice evolving from animal fats to modern shampoos, now witnesses a shift towards herbal alternatives due to concerns about synthetic chemicals [1, 2]. This research addresses the demand by formulating a stable herbal shampoo with natural ingredients. Aim: To investigate the impact of technological procedures on the quality of a herbal shampoo formulation. Methods: Evaluation encompassed potentiometric, texture analyzes, foam volume and stability, surface tension using a Traube stalagmometer, ink residue in foam to determine dirt dispersion and detergency abilities determination methods. A consumer study involved distributing shampoo samples and questionnaires (Nr.BEC-FF-52) to gather performance feedback from participants. Results: Over 5 months, pH variations remained statistically insignificant. No ink in foam during dirt dispersion test. A slight increase in cleansing action (from 20.22 ± 0.09 to 20.27 ± 0.06) (p>0.05). Wetting time reduced from (75.32 ± 1.459 sec.) to (74.5 ± 1.025 sec.), (p>0.05). Surface tension reduced (from 28.67 ± 0.02 mN/m to 27.08 ± 0.02 mN/m) (p<0.05). Foam volume increased (from 175.87 ± 3.01ml to 179.24 ± 0.79ml) (p>0.05). After 5 months at room temperature (25 ± 2°C), all texture parameters significantly changed. Consumer survey indicated overall satisfaction with the shampoo, despite some concerns about thickness. Conclusions: The addition of 1% allantoin and 0.5% patchouli extract improved shampoo quality, enhancing cleansing action, reducing wetting time, decreasing surface tension, slightly increasing foam volume, and ensuring overall stability.