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3 October 2019

For or against the sun?


By Dannica Abate, trainer at Ridha Cosmetiques

 

Sun rays are essential, not only to life, but also to morale. Let’s demystify the positive and negative effects of the sun so that you can enjoy the beautiful season in total safety.

 

The sun gives off invisible rays called UVA and UVB. UVAs having a wavelength deeper than UVB, act on the inner layers of the skin and are responsible for premature aging. UVB, more superficial, cause sunburns as well as several skin cancers.

3 October 2019

Lights on Stem Cells: Human, Animal and Botanical


By Dannica Abate, trainer at Ridha Cosmetiques

 

At a time when scientific advances in genetics are raising passions and many opinions, two words, let’s face it, are commonplace in the ears of estheticians: Stem Cells.

 

What is a stem cell?Stem cells are the first cells to work for the development of a human, animal or plant organism. They have the incredible ability to multiply and self-regulate indefinitely in a healthy environment; creating blood, bones and various tissues. However, their work does not stop once the growth is over. Living beings must be in constant regeneration in order to maintain optimal functioning. Because some specialized cells do not have the ability to renew or divide, stem cells come into play once again. They reconstitute cells that have been depleted or altered. They could therefore be called mother cells, essential to the process of cellular regeneration.