98% Nicotinamide/Vitamin B3 Powder

Supports energy metabolism

As a component of the coenzymes NAD⁺ and NADP⁺, it participates in the metabolism of carbohydrates, fats, and proteins, helping convert food into energy and maintain normal body function.

Improves skin health

Barrier repair: Strengthens skin barrier function, improves moisturizing ability, and relieves dryness and sensitivity.

Whitening and spot reduction: Inhibits melanin transfer, reduces hyperpigmentation, and improves uneven skin tone.

Anti-aging: Promotes collagen synthesis, reduces fine lines and wrinkles, and improves skin elasticity.

Cardiovascular protection

Helps regulate blood lipid levels and reduce the risk of cardiovascular disease.

Nervous system support

Participates in neurotransmitter synthesis and maintains normal nervous system function.

Nicotinamide's Main Functions and Mechanisms in Cosmetics

Niacinamide is a multifunctional skincare ingredient with widely proven effectiveness. Its applications in cosmetics primarily encompass the following five core benefits:

1. Whitening, Lightening, and Brightening Skin

Niacinamide is a classic and effective whitening ingredient that works synergistically through multiple mechanisms:

Inhibiting Melanin Transport (Core Mechanism): It effectively inhibits the transfer of melanosomes from melanocytes to surrounding keratinocytes, effectively "blocking" the melanin transport pathway, preventing it from reaching the skin surface and developing color. Studies have shown that its inhibition rate can reach 35%-68%.

Accelerating Melanin Metabolism: Niacinamide activates autophagy, prompting keratinocytes to accelerate the digestion and breakdown of melanin. It also promotes skin metabolism, accelerating the shedding of aging keratinocytes containing melanin, resulting in a more translucent complexion.

Assisting in Inhibiting Melanin Production: It also inhibits tyrosinase activity to a certain extent, reducing melanin production at the source.

2. Moisturizing and Nourishing: Strengthening the Skin Barrier

Niacinamide significantly enhances the skin's barrier function and improves the skin's inherent moisturizing capacity:

Promoting the Synthesis of Key Lipids: It enhances the activity of ceramide synthase, promoting the synthesis of ceramides in the skin. Ceramides are the main component of intercellular lipids and are crucial for retaining moisture.

Enhancing Hydration: By promoting hydration in the stratum corneum, it helps the skin effectively retain moisture and prevents water loss, thereby improving dryness, roughness, and flaking.

3. Regulating Skin Texture: Oil Control and Refining Pores

For oily and combination skin, niacinamide is an ideal conditioning ingredient:

Regulating Sebum Production: It reduces excessive sebum production, addressing the root cause of "oily complexion."

Promoting Healthy Metabolism: By promoting the synthesis of collagen and skin lipids, it makes the skin firmer and smoother, and helps refine pores.

4. Antioxidant: Protects against Free Radical Damage

Niacinamide has antioxidant properties that neutralize free radicals produced by environmental factors like UV rays and pollution, protecting skin cells from oxidative stress.

This helps delay photoaging, prevent dullness, and maintain a youthful, healthy complexion.

5. Soothing and Anti-Inflammatory: Repairing and Stabilizing

Niacinamide has certain anti-inflammatory properties that can alleviate inflammatory responses in the skin.

For sensitive skin or those suffering from acne, it can help reduce symptoms like redness, swelling, and itching, while promoting repair and restoration of the skin barrier.

Exploring the Mechanism of Action of Niacinamide

Its powerful skincare benefits stem from its deep cellular mechanisms of action:

Molecular Mechanism of Melanin Transport Inhibition:

Early studies have shown that niacinamide inhibits melanosome transport. Subsequent research has revealed that this mechanism is due to its inhibition of the activity of the proteinase-activated receptor-2 (Par-2) in the skin, which acts as the "switch" that regulates melanosome transport. Recent advances have shown that niacinamide can also act as an autophagy activator, prompting keratinocytes to accelerate the breakdown of melanin already introduced, thoroughly clarifying its whitening mechanism.

Regulating Cellular Energy Metabolism:

Niacinamide is a precursor of coenzyme I (NAD) and coenzyme II (NADP), both of which are essential for cellular energy conversion (such as the tricarboxylic acid cycle) and anabolism (such as lipid and protein synthesis).

It provides energy to skin cells, maintaining normal cellular function and regenerative repair capabilities.

Promoting the Biochemical Basis of Skin Barrier Repair:

By upregulating the activity of ceramide synthase, it directly promotes ceramide production, thereby strengthening the skin's "brick wall structure."

It promotes the synthesis of epidermal proteins (such as keratin and collagen), stimulating the production and differentiation of new cells, thereby comprehensively enhancing skin barrier function.