What is polyglutamic acid?
Polyglutamic acid, also known as PGA, is a natural polymer derived from glutamic acid. This substance is a key component of the amino acid family and is often extracted from natural products such as soy and wheat.
This polymer has the unique ability to retain water, making it an excellent hydrating agent for the skin.
What are the benefits of polyglutamic acid?
- Intense hydration : One of the main benefits of polyglutamic acid is its ability to lock in water . Unlike other moisturizing agents, polyglutamic acid is capable of retaining up to 10,000 times its weight in water , creating a hydration reservoir for the skin. By intensely hydrating the skin, this acid can help prevent overproduction of sebum in people with naturally oilier skin. Adequate hydration can balance oil production by signaling to the skin that it doesn't need to produce as much oil to compensate for dryness.
- Stimulation of hyaluronic acid production : Polyglutamic acid acts in synergy with the skin's natural hyaluronic acid, stimulating its production. This helps maintain optimal moisture balance and prevent skin dehydration.
- Formation of a protective film : When applied topically, polyglutamic acid forms a protective film on the surface of the skin. This film not only seals in hydration, but also acts as a protective barrier against external aggressions such as pollution and free radicals.
- Suitable for all skin types : Whether you have dry, oily, combination or sensitive skin, polyglutamic acid is versatile and can benefit all skin types. It adapts to the specific needs of each person, offering tailor-made hydration.
- Reduction of signs of aging : With its ability to maintain optimal hydration, polyglutamic acid can help reduce the appearance of fine lines and wrinkles , leaving skin looking firmer and younger. It can also positively influence pore visibility, as firmer skin tends to appear more even.
What are the differences between hyaluronic acid and polyglutamic acid?
Although hyaluronic acid and polyglutamic acid share similarities as skin moisturizers, there are key differences between the two.
- Molecular size : Hyaluronic acid comes in different forms and molecular weights , meaning it can penetrate different layers of the skin. On the other hand, polyglutamic acid forms a protective film on the surface, not penetrating as deeply as hyaluronic acid.
- Water retention capacity : Polyglutamic acid has exceptional water retention capacity, surpassing that of hyaluronic acid. This makes it a preferred choice for those looking for intense hydration.
- Protective film : Unlike hyaluronic acid, polyglutamic acid can form a protective film on the surface. This film acts as a barrier, preserving water and protecting the skin from external elements.
Use of polyglutamic acid
Polyglutamic acid can be incorporated into your skincare routine in a variety of ways. Here are some tips for use:
Moisturizing serum : Opt for serums containing polyglutamic acid for maximum hydration. Apply the serum morning and evening to clean skin before your moisturizer .
Eye Area : Due to its ability to reduce the appearance of fine lines, polyglutamic acid may be particularly beneficial in products intended for the eye area . Choose creams or serums specifically formulated for this delicate area.
Surface protection : Use products containing polyglutamic acid as a protective base before applying makeup. This provides continuous hydration throughout the day.
What ingredients can be combined with polyglutamic acid?
Polyglutamic acid can be combined with various ingredients to create synergistic cosmetic formulations, providing complementary benefits for the skin. Here are some ingredients commonly associated with polyglutamic acid:
- Hyaluronic Acid : Combining polyglutamic acid with hyaluronic acid , known for its hydrating properties , can create a powerful hydrating combination. These two ingredients work together to retain water, maintaining skin hydration and helping to reduce the appearance of fine lines and wrinkles.
- Vitamin C : Vitamin C is known for its antioxidant and lightening properties. By combining it with polyglutamic acid, we can create a serum that helps protect the skin against free radicals while promoting radiance and luminosity.
- Peptides : Peptides are essential components for skin regeneration. In combination with polyglutamic acid, they can help strengthen skin firmness and stimulate collagen production , contributing to more toned skin.
- Licorice : Licorice extract is renowned for its soothing and anti-inflammatory properties. Combined with polyglutamic acid, it can help calm irritated skin and reduce redness.
- Ceramides : Ceramides are natural lipids found in the skin that help maintain the skin barrier. Combined with polyglutamic acid, they strengthen the integrity of the skin barrier, reducing moisture loss.
- Retinol : Retinol, a form of vitamin A, is often used to stimulate cell turnover. In combination with polyglutamic acid, it can help improve skin texture, reduce blemishes and promote an even skin tone.
- Niacinamide (Vitamin B3): Niacinamide is appreciated for its multiple benefits, including improving skin texture and controlling sebum production. Combined with polyglutamic acid, it can help maintain skin balance.
- Aloe vera extract: Aloe vera is known for its soothing and moisturizing properties. By combining it with polyglutamic acid, we can create products that provide both intense hydration and relief from skin irritation.