Pregled in ocena varnosti kozmetičnih sestavin v izdelkih, namenjenih britju moških

Gologranc, Petra (author), Sollner Dolenc, Marija (mentor)

Britje je za moške vsakodnevna rutina, ki lahko povzroča draženje kože, zato je pomembno, da se pri tem uporabljajo kozmetični izdelki za britje. Ti omogočajo lažje in prijetnejše odstranjevanje dlak in kožo vlažijo. Ločimo stik, kremo, peno, gel in olje za britje. Ker se uporabljajo zelo pogosto, je pomembna njihova varnost. Ta temelji na varnosti sestavin, prisotnih v kozmetičnem izdelku. Namen diplomske naloge je bil pregledati kozmetične sestavine v izdelkih, namenjenih britju moških, in oceniti njihovo varnost. Pregledali smo 114 naključno izbranih kozmetičnih izdelkov za britje, ki jih najdemo na slovenskem trgu. V pregled smo poleg necertificiranih vključili tudi certificirane kozmetične izdelke. Od tega je bilo 18 stikov (mil) za britje, 18 krem, 31 pen, 39 gelov in 8 olj za britje. Pregledali smo njihove sestavine in na podlagi zbranih toksikoloških podatkov ovrednotili varnost kozmetičnih izdelkov za britje. Ugotovili smo, da je na trgu več necertificiranih kot certificiranih izdelkov. Največkrat najdemo gele, najmanjkrat pa olja za britje. Pri pregledu sestavin smo se osredotočili na dišave, barvila, konzervanse, UV-filtre in površinsko aktivne snovi, saj so pogosto vzrok različnih neželenih reakcij. Med dišavami se je najpogosteje pojavil linalol (52,6 %), med barvili briljantno modro FCF (14,9 %) in med konzervansi fenoksietanol (18,4 %). V pregledanih izdelkih smo našli tudi UV-filter benzofenon-4, ki spada med kemične UV-filtre. Prisoten je bil v enem izmed gelov za britje, kjer deluje kot fotozaščitno sredstvo. Med površinsko aktivnimi snovmi se je največkrat pojavil lavret-23, ki spada v skupino neionskih površinsko aktivnih snovi. Prav ta skupina je bila najpogosteje zastopana v pregledanih izdelkih. Pri primerjavi skupin kozmetičnih izdelkov za britje smo ugotovili, da, kljub temu da gre za različne oblike izdelkov, običajno vsebujejo podobne sestavine. Izjema je olje za britje, ki zaradi svoje lipofilne sestave vsebuje manj sestavin kot ostali kozmetični izdelki. Certificirani izdelki so vsebovali drugačne konzervanse in površinsko aktivne snovi kot necertificirani izdelki. Vsebovali pa so enake dišave, le da so te bile naravnega izvora. Pri pregledu toksikoloških podatkov najpogosteje prisotnih predstavnikov različnih skupin sestavin smo ugotovili, da je večina varna za uporabo v priporočenih koncentracijah. Največji problem predstavljajo dišave, saj lahko povzročajo alergijske reakcije. Na osnovi naših rezultatov lahko trdimo, da so kozmetični izdelki za britje varni za uporabo, ne izključujemo pa možnosti, da lahko katera od sestavin že v majhnih koncentracijah povzroča draženje kože ali preobčutljivostne reakcije.

• Language: Slovenian
• Keywords: kozmetični izdelki za britje, dlake, dišave, konzervansi, površinsko aktivne snovi
• Work type: Bachelor thesis/paper
• Organization: FFA - Faculty of Pharmacy
• Year: 2022
• PID: 20.500.12556/RUL-135119
• Publication date in RUL: 23.02.2022

Secondary language

• Language: English
• Title: Review and safety assessment of cosmetic ingredients in men´s shaving products

Abstract

Shaving is a daily routine for men, which can lead to skin iritation, so it is important to use shaving products. These make hair removal easier and more pleasant and they also moisturize the skin. There are various types of shaving products: soap, cream, foam, gel and shaving oil. Because of their frequent use, safety is very important. It is based on the safety of the ingredients contained in the cosmetic product. The purpose of this Bachelor's degree was to review cosmetic ingredients in men's shaving products and evaluate their safety. We reviewed 114 randomly chosen shaving products available on the Slovenian market. In addition to uncertified, we also included certified cosmetic product in the review. These include 18 soaps, 18 creams, 31 foams, 39 gels and 8 shaving oils. We analysed their ingredients and based on the collected toxicological data, we evaluated the safety of shaving products. We found that there are more uncertified than certified products on the market. The most common are gels and the least common are oils. In reviewing the ingredients, we focused on fragrances, dyes, preservatives, UV filters and surfactants, because they are usually the cause of side effects. The most commonly present fragrance was linalool (52,6 %). The most common among the dyes was brilliant blue FCF (14,9 %) and the most common among the preservatives was phenoxyethanol (18,4 %). In the reviewed products we also found a UV filter benzophenone-4, which is a chemical UV filter. It was present in one of the shaving gels, where it acts as a photoprotective substance. The most commonly present surfactant was Laureth-23, which belongs to nonionic surfactants. This group was the most frequently represented in the reviewed products. When we compared the cosmetic products we figured that most of them consist out of similar ingredients, despite the fact, that we are talking about different groups of cosmetic products. The only exception is shaving oil, which does not have as many ingredients, because of its lipophlic composition. Certified products contained different preservatives and surfactants than uncertified products. However, they contained the same fragrances, except that they were of natural origin. When reviewing the toxicological data of the most frequently present representatives of different groups of ingredients, we found that most are safe for use in the recommended concentrations. The biggest problem can be fragrances, which can cause allergic reactions. Based on our results, we can conclude that shaving products are safe to use. However, there is a chance that some of the ingredients may cause skin irritation or other hypersensitve reactions in small concentrations.

• Keywords: shaving products, hair, fragrances, preservatives, surfactants