Dry, easily irritated, or frequently breaking out skin are clear signs that your skin barrier is severely damaged. In the world of cosmeceuticals, Niacinamide (Vitamin B3) and EGF (Epidermal Growth Factor) are considered by dermatologists to be the golden key to restoring skin structure from within. Let's explore the scientific mechanisms behind this duo and how they rebuild a strong protective barrier for your skin.

1. What is the skin barrier? The core function of a natural "shield."

The skin barrier is composed of the stratum corneum surrounded by the outermost lipid layer of the skin. This protective layer plays an important role in maintaining the skin barrier, consisting of components such as Ceramide, Cholesterol, synthesis enzymes, and fatty acids.

The skin barrier acts as a "gatekeeper" for the skin; it not only prevents transepidermal water loss to maintain natural moisture but also serves as a steel shield against the invasion of bacteria, viruses, fungi, and pollutants.

2. Factors that weaken and ways to restore the skin barrier.

2.1. Harmful causes and "SOS" signals from the skin

The erosion of the skin barrier comes from many different factors:
First is the harmful effects of UV rays and environmental pollution. Sunlight not only causes hyperpigmentation but also directly destroys the natural lipid layer on the skin, while fine dust and vehicle exhaust clinging to the skin cause clogged pores and inflammation, weakening the skin's self-defense ability.
Besides, in the daily skincare routine, using strong chemical active ingredients, cosmetics containing alcohol and fragrances, or the habit of washing the face with hot water will inadvertently strip away the natural oil layer.
In addition, factors such as hormonal changes, age, and diet are also common factors that weaken the skin barrier.

So, what are the signs that your skin barrier is damaged:
🔹Stinging, itching skin, or easily develops redness when exposed to the environment or new cosmetics.
🔹Dry, flaky, or scaly skin, especially on the forehead, nose tip, and cheeks.
🔹Skin becomes less firm, dull, or even easily sensitive to sunlight.
🔹Inflammatory acne breakouts occur more frequently as bacteria and environmental pollutants can easily penetrate the skin.

2.2 Scientifically sound methods for restoring the skin barrier.

When noticing weakened skin, restoration is not about applying a lot of serums, but about implementing a proper and sufficient skincare routine.

Step 1: The first and most important step is to replace harsh cleansers with facial cleansers that have a standard pH level of 4.0 - 6.0. During this time, you should limit products containing exfoliating beads to avoid scratching the skin's surface.

Step 2: Supplement with essences containing special ingredients that help enhance skin barrier regeneration, such as Niacinamide, EGF, HA, Ceramide, etc. Additionally, you can hydrate your skin with a gentle toner before applying these essences.

Step 3:

🔹Night: If after applying restorative essences, your skin still feels dry, you can add a moisturizing cream to enhance hydration and strengthen the skin barrier.

🔹Day: A broad-spectrum sunscreen with an SPF of 30+ is indispensable.

3. Niacinamide and EGF restoration mechanism

Niacinamide acts as a versatile restorative agent:
🌟 Mechanism: This active ingredient stimulates the natural synthesis of Ceramide and free fatty acids. As mentioned, Ceramide accounts for 50% of the lipid barrier structure, so when Ceramide concentration increases, the gaps in the "wall" will be filled.
🌟 Impact: Niacinamide helps skin retain moisture, reduces inflammation, soothes red acne spots, reduces transepidermal water loss (TEWL), and strengthens the skin's resistance.

EGF is an epidermal growth factor, a natural protein in the skin.
🌟 Mechanism: EGF signals skin cells to accelerate cell division and regeneration. This promotes the production of structural proteins (Collagen, Elastin, Fibronectin) to replace old, damaged keratinocytes with new, healthy cells.
🌟 Impact: Shortens recovery time after damage, improves elasticity, helps skin become firmer, and the skin barrier becomes healthier.

4. Suggestion of some skin restoration products

oh!oh! is a prominent brand with products formulated with special formulas and rich active ingredients suitable for various skin conditions. Here are some skin barrier strengthening products that you should not miss.

4.1. Skin Health Serum

With 20% pure Niacinamide (Vitamin B3), this product not only helps strengthen the skin barrier but also supports oil control, soothes inflammation, and evens out skin tone.
The product is suitable for all skin types.

4.2 Oatmere Serum

This is a stem cell serum formulated with 4.5% Oat Extract and 9.9 ppm EGF (growth factor) to soothe skin damage, restructure the skin, provide a healthy skin barrier, and nourish the skin sustainably from the root.
The product is suitable for sensitive, pre-aging skin, and skin after treatment or cosmetic intervention.

Contact oh!oh! Vietnam today for in-depth consultation and how to regain smooth skin as soon as possible!