Vitamin Series
What is pure niacinamide powder?
Pure niacinamide powder is a white crystalline powder featuring the following properties:
Solubility: Highly water-soluble (1g/mL at 20°C), compatible with propylene glycol and glycerin. Stability: Photostable and heat-resistant; maintains structural integrity within pH 3–10 Concentration: Cosmetic formulations typically use 2–10%, while ≥99% purity grades require professional handling
Solubility: Highly water-soluble (1g/mL at 20°C), compatible with propylene glycol and glycerin. Stability: Photostable and heat-resistant; maintains structural integrity within pH 3–10 Concentration: Cosmetic formulations typically use 2–10%, while ≥99% purity grades require professional handling
COA
| Analysis | Description | Testing Result |
| Appearance | White fine powder | Complies |
| Solubility | Complies | Complies |
| Assay | ≥99.0% | 99.28% |
| Melting range | 128.0℃~131.0℃ | 129.0℃~130.0℃ |
| Absorption coefficient | Complies | Complies |
| PH | 5.5-7.5 | 6.30% |
| Clarity of solution and color | Solution clarification colorless | Complies |
| Readily carbonizable | ≤Matching Fluid | Complies |
| Related substances | Complies | Complies |
| Loss on Drying | ≤0.1% | 0.05% |
| Heavy Metal | ≤0.002% | <0.002% |
| Residue on ignition | ≤0.1% | 0.05% |
What does pure niacinamide powder do?
Sebum regulation: Modulates sebaceous gland activity, reducing excess oil production.
Barrier reinforcement: Enhances ceramide biosynthesis, strengthening stratum corneum cohesion.
Hyperpigmentation correction: Inhibits melanosome transfer to keratinocytes, diminishing hyperpigmentation. Photoprotection: Elevates cellular NAD⁺ levels to counteract UV-induced oxidative stress.
Barrier reinforcement: Enhances ceramide biosynthesis, strengthening stratum corneum cohesion.
Hyperpigmentation correction: Inhibits melanosome transfer to keratinocytes, diminishing hyperpigmentation. Photoprotection: Elevates cellular NAD⁺ levels to counteract UV-induced oxidative stress.
What should you never mix niacinamide with?
Avoid combining with:
Low-pH actives (e.g., >10% L-ascorbic acid, AHAs): Accelerates conversion to irritant niacin under acidic conditions919High-electrolyte solutions (e.g., magnesium chloride): Induces crystallization and potency reduction .
Unbuffered vitamin C: Requires pH >3.5 to prevent mutual efficacy degradation9Synergistic combinations: Hyaluronic acid, panthenol, or glabridin enhance efficacy (e.g., 40% brightening improvement with glabridin co-application)
Low-pH actives (e.g., >10% L-ascorbic acid, AHAs): Accelerates conversion to irritant niacin under acidic conditions919High-electrolyte solutions (e.g., magnesium chloride): Induces crystallization and potency reduction .
Unbuffered vitamin C: Requires pH >3.5 to prevent mutual efficacy degradation9Synergistic combinations: Hyaluronic acid, panthenol, or glabridin enhance efficacy (e.g., 40% brightening improvement with glabridin co-application)
Why is niacinamide no longer recommended?
Claims of "non-recommendation" are misleading. Key considerations:
Concentration tolerance: >5% may cause transient erythema—sensitive skin should initiate use at ≤2%
Impurity mitigation: Pharmaceutical-grade purity (≥99%) minimizes niacin contaminant risks.Functional synergy: Optimal performance when combined with retinoids (collagen stimulation) or glabridin (targeted depigmentation)
Concentration tolerance: >5% may cause transient erythema—sensitive skin should initiate use at ≤2%
Impurity mitigation: Pharmaceutical-grade purity (≥99%) minimizes niacin contaminant risks.Functional synergy: Optimal performance when combined with retinoids (collagen stimulation) or glabridin (targeted depigmentation)
How to buy pure niacinamide powder?
As a manufacturer of cosmetic raw materials for many years, sost biotech has been supplying pure niacinamide powder for a long time. It is used in cosmetics and formulations. We have the following advantages:
1. Free samples can be provided upon your request.
1. Free samples can be provided upon your request.
2. Production capacity: 20 tons/month.
3. The factory covers an area of 7,000 square meters and has 4 Ph.D. technical engineer.
4. Transportation method: express, air transport, sea transport
5. Quality control: 3rd party laboratory testing by Eurofins, SGS, BV etc.
6. 24 hours and 7 days full time standing-by services.
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