• Retinaldehyde, also known as retinal, is a biologically active derivative of vitamin A. It be-longs to the retinoid family, the best documented substances for slowing skin aging.
  • It is an intermediate form between retinol and retinoic acid and needs only 1 transformation in the skin to retinoic acid - which means faster action, less waste and, due to the slow release techno-logy used in Ph.Doctor products, less irritation compared to other retinoids.
  • Retinoids have a proven effect on the cell nucleus, so they are able to awaken the skin by binding to its receptors.
  • They are substances that affect all aging processes, including increasing collagen pro-duction, but also stopping collagen degradation after the age of 25. They undo some of the visual si-gns of aging caused by exposure to UV radiation known as photoaging.
  • With retinoids, the most important thing is to gradually build TOLERANCE.
  • At first, some people may experience temporary skin irritation (not everyone). The formula-tion of Our products is composed to minimize such risk. It is temporary and passes as tolerance to the ingredient builds. Don't be discouraged!
  • Retinoids are extensively studied raw materials with efficacy proven in studies. Desired ef-fects require an average of 12 weeks.
  • Retinal has an intense yellow color! The stabilized formula provides study-proven efficacy for 12 months after opening.

Retinal's effects:

- has an anti-acne effect

- has an anti-aging effect

- eliminates signs of aging

- tightens and firms the skin

- reduces discoloration

- reduces the appearance of fresh stretch marks

- moisturizes the skin

- improves skin texture

- Smoothes and firms the skin


- Acne (anti-bacterial effect)

- Blackheads, "porridge"

- Wrinkles

- Skin flabbiness

- Photoaging

- Discoloration

- Perifollicular keratosis (keratosis pilaris)

- Fresh stretch marks (here a better Cream with a stable form of retinal FACE&BODY RetinALL 0.05%)

- Reduction of TEWL (transepidermal water loss)

- Mature skin


- Severe active atopic dermatitis (AD) localized on the face

- Pregnancy

- Skin infection

- Scratches of the skin, laxity

- Irritated, dry skin

05. October. 2022 — Dr n. med. Nina Wiśniewska