Vitamins are among the most versatile active ingredients in modern skincare and hair care formulations, offering antioxidant protection, collagen synthesis, and skin barrier support.*

The global cosmetics and personal care industry continues to grow, driven by consumer demand for effective, science-backed formulations. Vitamins are among the most versatile and widely used active ingredients in skincare and hair care products, offering proven benefits ranging from antioxidant protection to collagen synthesis.

For cosmetic formulators and ingredient buyers, understanding the differences between cosmetic grade and other grades — and knowing how to source them reliably — is essential.

 Key Vitamins Used in Cosmetics

Cosmetic grade vitamins are derived from high-purity raw materials and must meet strict quality standards for safe use in topical formulations.

 Vitamin B3 (Niacinamide)

Niacinamide is one of the most popular active ingredients in modern skincare.

Benefits:
- Improves skin barrier function
- Reduces hyperpigmentation and dark spots
- Minimizes appearance of fine lines and wrinkles
- Regulates sebum production
- Reduces redness and blotchiness

Typical Use Levels:** 2-5% in leave-on formulations

Form:Niacinamide (nicotinamide) powder, 99%+

### Vitamin E (Tocopherol / Tocopheryl Acetate)

Vitamin E is the most widely used antioxidant in cosmetic formulations.

Benefits:
- Protects cell membranes from oxidative damage
- Moisturizes and conditions skin
- Extends shelf life of formulations (protects oils from rancidity)
- Soothes inflammation

Typical Use Levels: 0.5-5%

Forms:
| Form | Description | Best For |
|------|-------------|----------|
| DL-Alpha Tocopheryl Acetate | Stabilized, oil-soluble | Creams, lotions, serums |
| Natural Vitamin E (D-Alpha) | Higher bioavailability | Premium natural formulations |
| Mixed Tocopherols | Antioxidant complex | Natural preservative systems |

### Vitamin C (Ascorbic Acid / Derivatives)

Benefits:
- Potent antioxidant
- Stimulates collagen synthesis
- Brightens skin and reduces hyperpigmentation
- Protects against UV damage

**Forms for Cosmetics:**
| Form | Stability | Application |
|------|-----------|-------------|
| L-Ascorbic Acid | Low (oxidizes quickly) | Professional / fresh-use formulas |
| Ascorbyl Glucoside | High | Stable daily-care products |
| Magnesium Ascorbyl Phosphate | High | Gentle, water-soluble vitamin C |
| Ethyl Ascorbic Acid | High | Oil-soluble, stable |

 Vitamin K1 (Phylloquinone)

Benefits:
- Reduces dark circles under eyes
- Promotes wound healing
- Reduces bruising and redness

Form: Vitamin K1 oil (CAS 84-80-0)

Coenzyme Q10

Benefits:
- Reduces fine lines and wrinkles
- Antioxidant protection
- Boosts cellular energy in skin cells

**Typical Use Levels:** 0.3-1%

*Vitamin C and its derivatives are among the most sought-after active ingredients for brightening and anti-aging formulations.*

Cosmetic Grade vs. Food Grade: Key Differences

| Parameter | Cosmetic Grade | Food Grade |
|-----------|---------------|------------|
| Purity | Typically 98%+ | Typically 99%+ |
| Heavy Metal Limits | May be slightly higher depending on market | Strict limits |
| Particle Size | May require finer mesh for smooth feel | Standard |
| Documentation | COA, MSDS, allergen statement | COA, MSDS, food safety certs |
| Regulatory | CosIng (EU), CIR (US) | FDA, EFSA |

Important:For cosmetic use, always verify that the ingredient is listed in the relevant cosmetic ingredient database (e.g., EU CosIng, US CIR). Many food-grade vitamins can also be used in cosmetics, provided they meet purity and safety requirements.

Natural seed oils and botanical extracts are increasingly used alongside functional vitamins in premium cosmetic formulations.

 Sourcing Checklist for Cosmetic Ingredients

 Documentation to Request

- Certificate of Analysis (COA) with heavy metals
- Safety Data Sheet (SDS/MSDS)
- Technical Data Sheet (TDS)
- Allergen statement
- GMP certificate
- Country of origin

 Packaging Considerations

- Heat- and light-sensitive ingredients (CoQ10, Vitamin E) require opaque, airtight packaging
- Vitamin C (L-Ascorbic Acid) requires nitrogen-flushed, moisture-proof packaging
- Oils (Vitamin E, K1) should be filled with minimal headspace to prevent oxidation

Testing for Cosmetic Use

Many cosmetic manufacturers perform additional testing upon receipt:

- Organoleptic (color, odor, appearance)
- Viscosity (for oils)
- Microbiological testing
- Heavy metal analysis
- Active content verification

Liyin Bio Product Range for Cosmetics

| Product | CAS | Form | Grade |
|---------|-----|------|-------|
| Niacinamide (Vitamin B3) | 98-92-0 | Powder | Cosmetic/Food |
| DL-Alpha Tocopheryl Acetate (Vitamin E) | 7695-91-2 | Oil | Cosmetic/Food |
| Vitamin K1 Oil | 84-80-0 | Oil | Cosmetic |
| Coenzyme Q10 | 303-98-0 | Powder | Cosmetic |
| Ascorbic Acid (Vitamin C) | 50-81-7 | Powder | Cosmetic/Food |
| Taurine | 107-35-7 | Powder | Cosmetic |

Contact our team for cosmetic grade vitamin pricing, technical documentation, and free samples.

 Contact Us

For cosmetic grade ingredient inquiries:

Email:yolanda@liyinbio.com  
Phone/WhatsApp: +86-15824830539  
Website: www.liyinbio.com

Henan Liyin Biotech Co., Ltd — Ingredients that beautify.

E-mail:
yolanda@liyinbio.com

TEL: 
+86-15824830539

Address:
Zhengzhou, China