What is a periodic serum?

A periodic serum is a highly concentrated skincare product, designed to cater to the skin's needs at each phase of the female cycle. It aims to minimize the unpleasant effects that can be caused by hormonal fluctuations (estrogen, progesterone, testosterone) on the skin. Dehydration, dullness, blemishes, oily skin, redness, sensitivity... a woman's skin goes through a myriad of changes and varies in appearance throughout the weeks of the cycle.

At Typology, we wanted to explore a new range of care dedicated to the menstrual cycle, called Woman. A combination of four milky-consistency serums, corresponding to the four weeks of the female menstrual cycle, was developed to address the various skin issues that women experience during this period.

• Care No.1: Hydrating and Soothing Serum.

  Due to low levels of estrogen and progesterone, the skin becomes more sensitive and dehydrated than usual. As it becomes more fragile, it is crucial to hydrate the skin as much as possible, which will soothe it and make it more supple. Composed of 89% naturally derived ingredients, the serum's formula helps to alleviate discomfort (redness, tightness...) that may be felt during this period due to the "damage" caused in the previous phase. It hydrates the skin by creating a viscoelastic film on the surface to prevent the water in the skin from evaporating and to protect it from external aggressions. Additionally, it stimulates the skin's natural ability to regenerate itself.

  The main active ingredients: of the hyaluronic acid with high molecular weight (INCI: Sodium Hyaluronate), of thealoe vera (INCI: Aloe Barbadensis Leaf Juice Powder), of the bisabolol and of the cornflower floral water (INCI: Centaurea Cyanus Flower Water).

• Care No. 2: Flexibility and Radiance Serum.

  Week 2 is the one that follows the menstrual cycle and precedes ovulation. Gradually, the estrogen level increases until it reaches its peak during ovulation. This is when the skin is at its most beautiful. It is better hydrated without being overly oily and is more supple, thanks to the fact that it stimulates fibroblasts, or the production of elastin, collagen, and hyaluronic acid. Serum 2, with 88% naturally derived ingredients, is enriched with exfoliating and antioxidant actives, thus helping to maintain the radiance and texture of the skin which is at its peak.

  The main active ingredients: include Vitamin C (INCI: Sodium Ascorbyl Phosphate) and fruit acids such as blueberry extract (INCI: Vaccinium Myrtillus Fruit Extract), orange extract (INCI: Citrus Aurantium Dulcis (Orange) Fruit Extract) and lemon extract (INCI: Citrus Limon Fruit Extract).

• Care No. 3: Hydrating and Astringent Serum.

  Week 3 corresponds to the week following ovulation. The level of estrogen gradually begins to decrease, making way for progesterone to prepare the body for a potential pregnancy. This increasing production of progesterone stimulates the sebaceous glands, which start to secrete more sebum than usual. This excess sebum dilates the pores, making the skin oily and shiny. Conversely, with the decrease in estrogen concentration, the skin may start to become less hydrated, an effect that can be particularly observed in skin prone to dryness. Containing 91% natural ingredients, Serum 3 is composed of astringent active ingredients to regulate pore dilation, and hydrating and repairing active ingredients to preserve skin hydration. This third serum therefore aims to restore skin balance.

  The main active ingredients: sugar extracted from wheat (INCI: Xylitylglucoside, Anhydroxylitol, Xylitol, Glucose) and mastic tree extract (INCI: Pistacia Lentiscus Gum).

• Treatment No. 4: Mattifying and Anti-Imperfection Serum.

  Week 4 corresponds to the period just before menstruation, hence before the start of a new menstrual cycle. Already on the rise, the level of progesterone continues to increase: the sebaceous glands produce more sebum, thus increasing the risks of skin imperfections and inflammations. One or more pimples may appear during this week, corresponding to hormonal acne. Composed of 89% naturally derived ingredients, Serum 4 relies on the combination of mattifying, antibacterial, and anti-inflammatory active ingredients to limit skin imperfections and shininess.

  The main active ingredients: marine algae extract (INCI: Saccharide Isomerate) and zinc (INCI: Zinc PCA).