Eyeseryl® All-in Peptide - Booster

Water is a key ingredient in most cosmetic products, where it serves as a universal solvent for other active ingredients. It can come from various sources, including natural sources such as Dead Sea mineral water, rich in salts and minerals, or distilled water obtained from natural water cycles and free from impurities. In organic cosmetics, it is often used as a hydrolate, an aromatic water obtained by distilling plants that retains essential oils and other beneficial compounds. Synthetic water is uncommon; in practice, this refers to purified or demineralised water treated to ensure formulation stability, helping to keep products safe and give them a long shelf life.

Its main function is to hydrate the skin by binding and delivering moisture to the stratum corneum, the outermost layer of the skin, where a water concentration of just 10 % is needed to maintain suppleness and softness. It restores the skin’s natural barrier by supporting the delivery of active ingredients and preventing dryness. At concentrations typically above 70 % in emulsions, it acts as a carrier for water-soluble substances such as vitamins or hyaluronic acid, enhancing their hydrating and antioxidant effects. Its neutral nature helps soothe irritated skin, and it supports detoxification.

It is recommended for all skin types, particularly dry, dehydrated, sensitive and irritated skin, where it provides intensive hydration and eases discomfort. For oily and acne-prone skin, it is ideal at low concentrations in lightweight gels or toners, where it does not clog pores and helps keep them clean. Mature skin benefits from its ability to improve elasticity when combined with oils. It is also suitable for children and newborns in soothing products.

A study published in the Journal of Cosmetic Science showed that formulations containing 80-90 % aqua combined with humectants increased stratum corneum hydration by 25 % after 4 weeks of daily use (Journal of Cosmetic Science, 2018). Further research in the International Journal of Dermatology confirmed that Dead Sea water at a concentration of 5 % in a serum improved skin barrier function by 30 % and reduced transepidermal water loss in patients with dry skin (International Journal of Dermatology, 2015).

Eyeseryl® peptide is a tetrapeptide with proven efficacy against puffy under-eye bags. Eyeseryl® peptide solution G contains a tetrapeptide with anti-oedema properties and proven efficacy in reducing puffy under-eye bags in just 15 days. It is specially designed for eye care products. This tetrapeptide is intended to improve the appearance of the eye contour in men and women. A reduction in the appearance of under-eye bags and dark circles was observed from 14 days. Eyeseryl® helps reduce the build-up of fluid trapped in the under-eye area. It reduces the appearance of puffy eyes and diminishes dark patches and circles under the eyes. Water can accumulate on the eyelids and under the eyes overnight, causing puffiness. Eyeseryl® peptide supports lymphatic circulation. As circulation improves, stagnant water begins to flow and puffiness is significantly reduced. Loss of elasticity also causes under-eye bags, as the skin in this very sensitive area becomes loose. Clinical studies have shown that Eyeseryl® peptide is effective against puffy under-eye bags. It improves skin elasticity and helps reduce dark circles under the eyes. Eyeseryl® peptide: a specially developed peptide that helps combat puffiness and under-eye bags, reduces excess fluid in the skin around the eyes, improves lymphatic circulation, lightens dark circles, smooths wrinkles and skin, and firms and moisturises the eye area. Results become visible within a few weeks, and regular daily use is necessary.

This synthetically produced ingredient is specially designed as a bioactive peptide solution based on acetyl tetrapeptide-5 in a glycerine and water carrier. Originally developed in a laboratory to address concerns affecting the delicate skin around the eyes, it is not extracted from plants but is a biotechnologically optimised tetrapeptide that mimics the skin's natural regulatory mechanisms. It retains the purity and stability typical of modern cosmetic peptides, without natural impurities.

Its mechanism of action involves supporting lymphatic drainage and reducing oedema by inhibiting enzymes that retain fluid in the tissue. It moisturises and firms the skin around the eyes, restores elasticity and soothes irritation. It supports microcirculation, reducing water stagnation and improving the appearance of dark circles. The recommended concentration in formulations is 1-3 % for visible results without irritation.

It is particularly recommended for dry, dehydrated, sensitive and mature skin around the eyes showing signs of puffiness, bags and dark circles. Ideal for men and women aged 25 and over looking for preventative or corrective care for the delicate eye area. Suitable for tired skin following a lack of sleep or for age-related loss of firmness, including acne-prone skin with sensitivity in this area.

A clinical study showed that Eyeseryl at a concentration of 3 %, applied twice daily, reduced the volume of under-eye bags by 29,55 % and their surface area by 19,4 % after 15 days in 20 volunteers (International Journal of Cosmetic Science, 2009). Another test involving 28 women showed a 14,9 % reduction in under-eye oedema after 28 days at a concentration of 3 % (Cosmetics & Toiletries, 2010).

A multifunctional additive suitable for formulating preservative-free cosmetic products. Both ingredients have intrinsic antimicrobial properties that allow products to be formulated safely with a low potential for irritation and sensitisation. Phenethyl alcohol is an organic compound in the form of a colourless liquid. It occurs naturally in essential oils and has a pleasant floral scent. In cosmetics, it acts as a preservative and fragrance ingredient. It is found in make-up, eye make-up, personal care products, shampoos, perfumes and colognes. Phenethyl alcohol is safe in cosmetics and personal care products at concentrations of up to 1 %. At higher concentrations, it causes mild skin and eye irritation. It poses no risk to the foetus or to pregnant or breastfeeding women. It is vegan and permitted in organic cosmetics. Caprylyl glycol is obtained from coconut or palm oil, making it a naturally derived substance suitable for vegan and organic formulations.

Phenethyl alcohol is an organic compound in the form of a colourless liquid. It occurs naturally in essential oils and has a pleasant floral scent. In cosmetics, it acts as a preservative and fragrance ingredient. It is found in make-up, eye make-up, personal care products, shampoos, perfumes and colognes. Phenethyl alcohol is safe in cosmetics and personal care products at concentrations of up to 1 %. Caprylyl glycol is used in cosmetics as a surfactant and emulsifier, improving product texture and helping water and oil combine effectively. It is a humectant and skin-conditioning agent that maintains the skin's moisture balance. It also acts as a stabiliser and preservative and enhances the antimicrobial activity of other preservatives. In fact, it is often used in preservative blends. Its multifunctional nature (moisturising and antimicrobial) makes it useful in many cosmetic products. Its mechanism of action involves moisturising, restoring the skin barrier and providing antimicrobial protection; phenethyl alcohol inhibits the growth of bacteria and yeasts at concentrations of 0,5-1 %, while caprylyl glycol retains moisture and enhances the antimicrobial effect at levels of 0,5-2 %.

It is mild and gentle on the skin and can be used in products for children's skin. Allergic reactions to caprylyl glycol are very rare, and it is very well tolerated. It is recommended for dry, sensitive, dehydrated, oily and acne-prone skin, as well as mature skin and products for children aged 0+ years. Its low sensitisation potential makes it ideal for atopic skin, eczema or rosacea, where it minimises the risk of irritation with long-term use.

A study published in the Journal of Cosmetic Science (2014) demonstrated that a blend of phenethyl alcohol and caprylyl glycol at a concentration of 1 % inhibits the growth of Staphylococcus aureus by 99,9 % and Candida albicans by 95 % after 7 days of incubation, significantly extending the microbial stability of emulsions without traditional preservatives. Further research in the International Journal of Cosmetic Science (2018) confirmed that caprylyl glycol at a concentration of 1 % improves skin hydration by 25 % after 4 weeks of application in individuals with dry skin.