2025

Cosmetics

Journal year: 2025 | Journal volume: vol. 12 | Journal number: iss. 1

scientific article

english

EN Only about 30% of coffee bean mass can be transformed into coffee drinks; thus, a larger fraction ends up as spent coffee grounds (SCGs), which have been mainly disposed of as waste. The promising direction of SCG reuse is in the cosmetic industry. The aim of this study was to prepare stable cosmetic emulsion bases to create a coffee scrub using SCGs. As the emulsion base and its stability are crucial for the production of cosmetic scrubs, eco-friendly emulsifiers based on apricot kernel oil, soya lecithin and a natural emulsifier from olive oil were included in the study. Apricot kernel oil proved to be the only stable emulsifier. The prepared bases were subjected to microscopic analysis and visual assessment of stability. Cosmetic emulsions with this emulsifier are a good base for coffee scrubs, both with glycerine and castor oil, as well as with the addition of macadamia oil. In emulsions with apricot kernel oil emulsifier and castor oil, macadamia oil increases the percentage of droplets with the smallest diameters, improving the stability of the system. Based on this study, it can be concluded that SCGs are a promising raw material for the production of scrubs with a pleasant coffee aroma.

19.02.2025

31-1 - 31-16

10.3390/cosmetics12010031

https://www.mdpi.com/2079-9284/12/1/31?utm_campaign=releaseissue_cosmeticsutm_medium=emailutm_source=releaseissueutm_term=doilink25

Article number: 31

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