Free radicals are highly reactive oxygen molecules and are also known as ROS – Reactive Oxygen Species. They are triggered by external factors such as the sun, the environment and our diet and lifestyle choices.

The body uses anti-oxidants to neutralize these potentially harmful free radicals. When there is an imbalance between the production of free radicals and the body’s ability to neutralize them the free radicals start to damage cells in a process known as oxidative stress. While aging is an entirely natural process, oxidative stress can cause skin to age prematurely: it may start to sag and develop wrinkles before its time and dull and tired.

You can find out more in our article free radicals: what are they and how do they affect skin? You can read more about the different stage of aging in our dedicated articles: fine lines and wrinkles, a loss of volume and facial contours and a loss of elasticity and deep wrinkles.

Vitamin C is known to be a powerful anti-oxidant and is key to the synthesis of collagen in skin cells. There are four main factors that make Eucerin’s Hyaluron-Filler Vitamin C Booster so effective:

• 10% Pure Vitamin C: Our formula contains 200x the concentrated Vitamin C of an orange². Research has shown that, to make a difference to skin cells, a product needs to contain at least 8% Vitamin C. Formulations over 20% do not increase in effectiveness and may also cause some irritation³. Eucerin uses a concentration of Vitamin C proven to deliver results while being well tolerated by skin⁴.
• Freshly-activated: Pure Vitamin C naturally degrades when exposed to oxygen so it is at its most effective when it’s freshly-activated. Our innovative packaging releases the Vitamin C powder at the push of a button. Shake it, and the powder blends with the emulsion. The Vitamin C is activated and unfolds its power instantly. Use within 21 days of activating to ensure the booster is at its most effective.
• The total formula: The formula also includes low molecular Hyaluronic Acid (skin’s own moisturizer which helps to plump up wrinkles) and Licochalcone A (which strengthens the anti-oxidative effect of the Vitamin C).
• Applied directly where it’s needed: The unique combination of ingredients in Eucerin Hyaluron-Filler Vitamin C Booster means it can be easily absorbed by the skin, so you can be sure you’re applying Vitamin C right where it’s needed.

2 Based on the average content of Vitamin C in oranges: 50mg /100g 

3 Pinnell SR, Yang H, Omar M, et al. Topical L-ascorbic acid: percutaneous absorption studies. Dermatol Surg. 2001;27(2): 137-142#

4 Fitzpatrick RE, Rostan EF. Double-blind, half-face study comparing topical vitamin C and vehicle for rejuvenation of photodamage. Dermatol Surg. 2002; 28(3): 231-236

You can use the booster at any age. Genetics, lifestyle and environment all affect how and when our skin starts to age, but many of us experience the first signs of skin aging in our 20s: fine lines and wrinkles start to appear and skin can look dull and tired. All skin is subjected to oxidative stress so the sooner you start caring for it the better. Regular cleansing, sun protection, moisturization and the use of powerful, proven anti-oxidants such as Vitamin C will help you to keep your skin healthy and prevent premature skin aging.

Eucerin Hyaluron-Filler Vitamin C Booster is clinically and dermatologically proven to strengthen and smooth skin and plump up wrinkles for a fresher and more radiant look in just seven days. It’s an ideal boost for dull-looking skin and helps to reduce the first signs of skin aging.

For more information on the different stages of skin aging, and to help you find the right products for you, read our article on skin at different ages.

Yes. The serum is suitable for all skin types, including sensitive skin. It is clinically and dermatologically proven to be both effective on and well tolerated by sensitive skin. Vitamin C can make skin more sensitive to the sun. For this reason, we recommend that you follow the booster with high factor sun protection for a week after use. Eucerin Hyaluron-Filler Day SPF 30 is an anti-aging day cream that offers both UV (SPF 30) and UVA protection and is ideal for daily use. The Eucerin sun protection range also includes a selection of SPF 50 products suitable for different skin types and needs.

You can read more about how sun affects skin in our article How do UVA, UVB and HEVIS Light rays affect skin?

Eucerin Hyaluron-Filler Concentrate is an intensive anti-wrinkle serum. It contains both high and low molecular Hyaluronic Acid and Glycine Saponin and has been specially formulated to enhance the moisturizing and wrinkle-filling benefits of the Day and Night products in the range.

Eucerin Hyaluron-Filler Vitamin C Booster harnesses the anti-oxidant and collagen--boosting benefits of 10% pure and freshly-activated Vitamin C. It also contains low molecular Hyaluronic Acid and is clinically and dermatologically proven to strengthen skin, plump wrinkles and give it a smoother, fresher and more radiant appearance in just seven days with results improving over time. It can be used as a stand-alone booster to combat the first signs of aging although we recommend that it is used in combination with a Eucerin Hyaluron-Filler day cream such as: Eucerin Hyaluron-Filler Day SPF 15, Eucerin Hyaluron-Filler Day SPF 30, Eucerin Hyaluron-Filler CC Cream SPF 15 Light or Eucerin Hyaluron-Filler CC Cream SPF 15 Medium.

If you prefer to use the product at night we recommend you use it in combination with Eucerin Hyaluron-Filler Night.

Both the booster and the concentrate can be used daily.