Retinol, or pure vitamin A, is one of the most researched active ingredients in cosmetics. Retinol serums work by stimulating cell division in the epidermis and stimulating fibroblasts to produce type I and III collagen in the dermis. This improves both the appearance and structure of the skin, smoothing, firming, and evening it out.
The most important information about retinol serum:
Retinoids – derivatives of vitamin A – have a profound and multifaceted effect. In addition to their effect on collagen, They also regulate cell renewal, improve skin density and reduce the visibility of pores.. Unlike the classic ones moisturizing ingredients, retinoids change the physiology of the skin, accelerating its regeneration and reconstruction.
Research by Kafi et al. (2007) demonstrated that using retinol creams improves skin elasticity, reduces fine lines, and reduces epidermal roughness. Importantly, these effects are noticeable after just a few weeks, and some persist long-term with regular use. Mukherjee et al. (2006) emphasize that retinoids are one of the few cosmetic ingredients whose effectiveness has been confirmed in human studies—both in the context of natural aging and photoaging.
Retinol serum it is worth introducing care after about the age of 30 – the moment when natural collagen synthesis begins to gradually decline. Cosmetics with retinol They not only counteract loss of firmness, but also improve skin texture and support its natural repair processes. Importantly, they are effective even when signs of aging are already visible – they act not only preventively but also in a corrective manner.
The study by Oresajo et al. (2009) showed that as little as 0.3–0.5% retinol in cosmetics can significantly improve the appearance of photodamaged skin – with good tolerance if the formula is properly balanced.
The delicate skin around the eyes is one of the first areas to show fine lines and wrinkles. Retinoids, in low concentrations and in well-designed formulas, can smooth these changes without irritation. They work by stimulating epidermal renewal and improving the synthesis of collagen and glycosaminoglycans, which are responsible for skin elasticity.
However, using retinoid serum around the eyes requires caution – it is best to start by applying it every other day and observing the skin's reaction.
Retinoids can oxidize when exposed to light and oxygen, losing their effectiveness. Therefore, combining them with antioxidants is a good solution – especially vitamin E, which:
This combination increases not only the durability of the product, but also its effectiveness, mitigating possible side effects of using retinol.
Retinyl retinoate to new generation retinol derivative, designed for high effectiveness without the side effects typical of traditional retinoids. Unlike pure retinol, it does not have to undergo multiple stages of conversion into active retinoic acid – therefore, it works faster and is gentler.
Studies on its effectiveness have shown that reduces the visibility of wrinkles, improves skin firmness and tone, and at the same time does not cause intense exfoliation, burning or redness, even in care for people with sensitive skin.
Retinyl retinoate works even in the presence of daylight, which means that formulas containing it can be more flexible in use. Contains retinoid properties, but with greater stability and tolerance – which makes it an excellent choice for people who have not yet tolerated traditional forms of retinol.
This ingredient is ideal for use in evening cosmetics, especially in the case of mature, thin, sensitive skin or skin with chronic dryness and loss of elasticity.
Rue de Skin Retinyl Serum contains retinyl retinoate in combination with peptides, vitamin E and squalane, making it a comprehensive evening cosmetic to combat the signs of aging. It works gently yet effectively – smoothing, improving elasticity, brightening discolorations, and supporting regeneration.
The formula has been developed to minimize the risk of irritation, so the serum can be used even daily, without the need for an adaptation period.
The first effects – subtle smoothing and improved skin texture – are noticeable after just 2–3 weeks of regular use. Improvements are visible after 6–8 weeks. significant improvement in firmness, reduction of fine wrinkles and lightening of discolorations.
Thanks to the presence of vitamin E, the serum also provides antioxidant effect, which supports protection against oxidative stress and further photoaging.
No – it has comparable effectiveness with much better tolerability and stability.
Yes – that's one of its greatest advantages. It can be used daily, even by people with sensitive skin.
In the evening, apply SPF after cleansing and before applying cream. In the morning, apply SPF.
Yes, as long as you use a cream with a high UV protection factor. Retinyl retinoate is more stable than classic retinol.
For people over 30, with signs of aging, loss of firmness, uneven skin tone or minor discoloration.
In the ranking Retinal vs. retinol Retinal wins in terms of speed of action because it only needs one transformation to become active retinoic acid, while retinol requires two such steps, which makes the retinal treatment more intensive and efficient.
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