New antioxidant lauryl-free herbal shampoo formulation with a Brazilian plant extract

Abstract

Sodium lauryl sulfate is the main cleaning ingredient in shampoos, even though it may be potentially damaging to hair. The demand for antioxidant-rich cosmetics, on the other hand, has encouraged green cosmetics research. Brazil has vast biodiversity that can be exploited for the production of these cosmetics. This work aimed to develop a minimalist antioxidant lauryl-free shampoo formulation with leaf extracts from the Brazilian plant Hancornia speciosa Gomes. Two hydroethanolic extracts were prepared using different extraction methods, Soxhlet, and ultrasound. The extracts were characterized by the presence of saponins, polyphenol quantification, and HLPC chemical identification of the compounds. Antioxidant activity was determined using the DPPH method. The antioxidant lauryl-free shampoo was developed using hydroxyethyl cellulose with two concentrations of leaf extract obtained by Soxhlet, 0.125 mg/g (XP1) and 0.250 mg/g (XP2). Along with the antioxidant activity, the physical and chemical properties, cleaning potential, and foam quality were evaluated. The Soxhlet leaf extract revealed a more favorable chemical profile, including a positive result for saponins, as well as a larger quantity of polyphenols and increased antioxidant activity. The XP2 formulation showed better foam height, dirt dispersion, and antioxidant activity. Thus, the use of mangabeira leaf extract appears to be promising for the development of shampoos with antioxidant activity.

Development and stability of intimate soap formulations using Sapindus saponaria L. extract as a natural surfactant

“…The incorporation of the extract in formulations F2 and F3 contributed in enhancing this power. These values corroborate those found in shampoos (formulation with characteristics similar to liquid soaps) with plant extracts by Sharma et al (2011) and Panotin et al (2022).…”

“…In the case of liquid soaps, formulating a product that replaces anionic surfactants such as Sodium Lauryl Ether Sulphate (SLES) is a challenge, as they are associated with factors such as foaming and cleaning (Jurek et al, 2021). The use of natural surfactants rich in saponins has been gaining prominence as they contribute to the detergency and emulsification process (Panotin et al, 2022). The industry's interest in natural ingredients reflects consumer demand for less aggressive and more sustainable products, and the replacement of synthetic raw materials with natural ingredients offers better biocompatibility and less risk of allergens, as well as socio-environmental benefits with impact reduction (Rocca et al, 2022).…”

Contact Dermatitis Due to Hair Care Products: A Comprehensive Review

“…Technology and advances in cosmetics introduce new molecules every year with specific properties that add value to the cosmetic product and improve hair conditions. Antioxidants are an increasingly enhanced ingredient in shampoos, which usually eliminate surfactants like sodium lauryl sulfate to improve the quality of the product 66 . Antioxidants obtained from plants such as Hancornia speciosa 67 , Cyclea peltata 68 , or Withania frutescens 69 have been reported with interesting results.…”

Contact Dermatitis Due to Hair Care Products: A Comprehensive Review

“…Technology and advances in cosmetics have led to the introduction of new molecules every year with specific properties that add value to the cosmetic product and improve hair conditions. Antioxidants are an increasingly used ingredient in shampoos, which usually eliminate surfactants like sodium lauryl sulfate to improve the quality of the product [68]. Antioxidants obtained from plants such as Hancornia speciosa [69], Cyclea peltata [70], or Withania frutescens [71] have been used with interesting benefits.…”