What are the benefits of Hyaluronic Acid?
The main ones are increased hydration, elasticity, firmness and freshness of the skin, as well as reduction of expression lines.
How does hyaluronic acid work on the skin?
Mainly by attracting water from the outside and reducing the evaporation of liquids from the skin, promoting its hydration.
What types of hyaluronic acids?
There are cross-links, which are usually injected into the skin, and non-crosslinks, which are used in dermocosmetics. There are also molecular weight differences.
Does the size of hyaluronic acid matter?
Yup. Larger molecules form a film on the surface while smaller molecules penetrate deeper layers of the skin.
And what is the ideal size of the AH?
The best results are obtained by combining molecules of different sizes. Individually, tests indicate that the 50 kiloDaltons perform better.
Where does the HA in dermocosmetics come from?
Hyaluronic acid can be of animal or plant origin. At PRINCIPIA, we only use 100% plant-based products.
When to apply HA?
Depends on skin type and weather conditions. In general, continuous use, morning and night, is recommended.
Can I combine with other assets?
Yup. There are practically no restrictions on the use of HA in conjunction with other actives such as, for example, alpha hydroxy acids, retinoids or peptides.
What are the contraindications of hyaluronic acid?
They are rare and can be used on all skin types, by pregnant and lactating women and in skin with rosacea.
Can HA cause acne and blackheads?
Not. On the contrary, it usually has a beneficial effect, being highly recommended for use on acne-prone skin.
What concentrations are used?
In dermocosmetics, HA is usually in concentrations between 0.1% to 2%, such as PRINCIPIA’s HYALURONIC ACIDS + B5. Above that, it can cause skin dehydration.
Curiosities:
– despite being an acid, hyaluronic acid has a pH close to neutral, between 6.5-7.5;
– one gram of HA can hold up to 1 liter of water, equivalent to a thousand times its own weight;
– hyaluronic acid is not photosensitive, remaining stable even under sun exposure;
– HA is usually produced in the form of a salt, called sodium hyaluranate (sodim hyaluronate);
– the hyaluronic attaché is one of the main components of the skin’s extracellular matrix;
– the presence of HA in the dermis decreases with aging, normally after 25 years of age;
– Hyaluronic acid binds to elastin and collagen, providing elasticity and volume to the skin.
