Proučevanje sestave kozmetičnih izdelkov za nego nohtov

Bangiev, Anja (author), Ahlin Grabnar, Pegi (mentor)

Ohranjanje zdravih nohtov je izrednega pomena, saj nohti pomembno vplivajo na človekov videz in počutje, zato jih je treba ustrezno negovati s prilagojenimi kozmetičnimi izdelki za nego nohtov. Za ta namen lahko uporabljamo izdelke za utrjevanje in vlaženje nohtov in izdelke za odstranjevanje obnohtne kožice. Zaradi anatomije nohta so za nego najpogosteje v uporabi laki za nohte, kjer pri formuliranju dodajamo primarne in sekundarne tvorilce filma, ki so tudi osnova lakov. Na trgu najdemo širok izbor izdelkov za nego. V diplomski nalogi smo proučili sestavo 55 kozmetičnih izdelkov za nego nohtov, ki so na voljo v spletnih in specializiranih trgovinah in jih razdelili v 3 skupine glede na njihov namen. Zanimalo nas je, katere sestavine, ki so odgovorne za pozitiven učinek, proizvajalci najpogosteje izpostavljajo in kateri tip glede na nosilni sistem prevladuje. V nadaljevanju smo pregledali pogostost pojavljanja določenih sestavin za vsako skupino izdelkov. Pri izdelkih za utrjevanje nohtov smo pregledali primarne in sekundarne tvorilce filma, ki morajo biti med seboj kompatibilni. V okviru izdelkov za vlaženje nohtov smo pregledali najpogosteje prisotne vlažilne sestavine in prišli do zaključka, da v izbranih izdelkih prevladujejo emolienti – največkrat uporabljen emolient je mandljevo olje, pogosti so tudi humektanti, medtem ko je prisotnost okluzivov veliko manjša. Preverili smo tudi prisotnost konzervansov, površinsko aktivnih snovi, antioksidantov in dišav, ki imajo vlogo pomožnih sestavin v izdelkih, prav tako smo prisotnost teh sestavin preverili tudi pri izdelkih za odstranjevanje obnohtne kožice. Pozornost smo namenili tudi hipoalergenim lakom. V lakih za nohte se lahko srečamo s sestavinami, ki povzročajo neželene učinke, zato smo pregledali prisotnost potencialnih alergenov. Kopolimer toluensulfonamida in formaldehida , ki je znan alergen, smo našli v 1 kozmetičnem izdelku, v 3 kozmetičnih izdelkih pa formaldehid. Med izbranimi izdelki se 2 kozmetična izdelka oglašujeta kot hipoalergena. Zaradi naraščajočega zanimanja za naravno kozmetiko smo pri izbranih izdelkih preverili prisotnost različnih certifikatov. Po pregledu smo našli le 2 s certifikatom NaTrue, ki ga proizvajalec sme pridobiti če, uporabi 5–15 % sinteznih sestavin v izdelku.

• Language: Slovenian
• Keywords: kozmetični izdelki za utrjevanje nohtov, kozmetični izdelki za vlaženje nohtov, kozmetični izdelki za odstranjevanje obnohtne kožice, hipoalergeni laki za nohte
• Work type: Bachelor thesis/paper
• Organization: FFA - Faculty of Pharmacy
• Year: 2021
• PID: 20.500.12556/RUL-129190
• Publication date in RUL: 28.08.2021

Secondary language

• Language: English
• Title: A study of nail care cosmetic products composition

Abstract

Maintaining healthy nails is of utmost importance as they have a significant impact on a person's appearance and well-being, and should be properly cared for with nail care products. For this purpose, nail hardening and moisturising products, such as products that remove cuticles, can be used. Due to the anatomy of the nail, nail polishes are the most commonly used nail care products, where primary and secondary film formers are added in the formulation, which are also the base of the polish. A wide range of care products can be found on the market. In this thesis I have studied the composition of 55 nail care products available online and in specialised shops, dividing them into 3 groups according to their purpose. I was interested in which ingredients responsible for the positive effect are most frequently highlighted by the manufacturers, and which type is predominant, according to the carrier system. I then checked the frequency of occurrence of specific ingredients for each product group. For nail hardening products, I focused on primary and secondary film formers, which must be compatible with each other. In the nail moisturising products, I researched the most frequently used moisturising ingredients and concluded that emollients are predominant in the selected products – almond oil is the most frequently used emollient; humectants are also common, while occlusive agents are much less prevalent. The presence of preservatives, surfactants, antioxidants and fragrances as excipients in the products was checked; their presence in cuticle removers was also checked. I also paid attention to hypoallergenic polishes. Some nail polishes may contain ingredients that cause side effects, so I looked for the presence of potential allergens. Toluene sulfonamide formaldehyde resin, a known allergen, was found in 1 cosmetic product and formaldehyde was found in 3 cosmetic products. Of the selected products, 2 cosmetic products are advertised as hypoallergenic. Due to the growing interest in natural cosmetics, I checked the presence of different certificates for the selected products. After reviewing them, I found only 2 that have the NaTrue certificate, which a manufacturer is allowed to obtain if it uses 5-15% synthetic ingredients in the product.

• Keywords: nail hardening cosmetic products, nail moisturising cosmetic products, cuticle removing cosmetic products, hypoallergenic nail polishes