Vitamin C Radiance Serum Base

1. INCI & CAS

INCI: 3-O-Ethyl Ascorbic Acid · CAS: 86404-04-8

2. Role in the formula

3-O-ethyl ascorbic acid is used in cosmetic serum guides. It is not a drug and not a measured brightening percentage.

3. Typical use levels (formulation guide)

• For serums, use 1–3% for the formula.
• Gel-creams: 0.5–2%.

For dissolution, use water. Keep the bulk cool and protected from light.

4. Regulatory sources & global compliance

• If 3-O-Ethyl Ascorbic Acid appears in CosIng, its entry is informational and does not approve a specific grade or finished cosmetic.
• For cosmetics placed on the EU market, Regulation (EC) No 1223/2009 requires the final cosmetic with 3-O-Ethyl Ascorbic Acid to undergo a safety assessment before release of the finished cosmetic.
• Match the selected 3-O-Ethyl Ascorbic Acid material to its supplier TDS and check the filing list for the market of sale.

5. Safety & risk assessment

The use-level note is a reference for cosmetic formulation; it does not authorize a drug or OTC product so patch response and stability should be checked on the finished product.

6. Stability & packaging

Hold the bulk material in a sealed, cool place shielded from light; consider an airless or pump format when oxidation sensitivity warrants it; follow with stability and packaging checks on the confirmed batch.

7. Claims language (Do / Don’t)

• The cosmetic concept for 3-O-Ethyl Ascorbic Acid in this entry centers on ethylated vitamin C.

• The ingredient record does not support drug or therapeutic claims, clinical cures, or certification claims not confirmed for the product.
• This guide to 3-O-Ethyl Ascorbic Acid provides no basis for whitening, acne-treatment, antiperspirant, sun-protection, or hair-growth benefits.

1. INCI & CAS

INCI: Ferulic Acid · CAS: 1135-24-6

2. Role in the formula

Ferulic acid is poorly water-soluble and is used at low cosmetic levels. It is not a drug.

3. Typical use levels (formulation guide)

• The formulation record indicates 0.3–0.5% with a suitable solvent for serums as a formulation guide.

Pre-dissolve. Low pH and light both matter; follow the TDS.

4. Regulatory sources & global compliance

• If Ferulic Acid appears in CosIng, its entry is informational and does not approve a specific grade or finished cosmetic.
• The finished-product provisions of Regulation (EC) No 1223/2009 require the completed product containing Ferulic Acid to receive its own safety assessment as a finished-product assessment.
• Compare the received Ferulic Acid material with its supplier specification and review destination-market filing needs.

5. Safety & risk assessment

The use-level note is a reference for cosmetic formulation; the note establishes neither drug approval nor OTC-monograph status with patch assessment and finished-formula stability testing still required.

6. Stability & packaging

Keep bulk material sealed, cool, and out of direct sunlight; if the formula is oxidation-sensitive, an airless or pump format may be considered; verify the chosen pack against the tested formula.

7. Claims language (Do / Don’t)

• For cosmetic use, this entry records Ferulic Acid in a direction centered on ferulic antioxidant.

• This reference cannot substantiate drug claims, cure claims, or a certification that is absent from the product records.
• The documented facts for Ferulic Acid should not be used to substantiate skin whitening, acne treatment, antiperspirant use, sun protection, or hair growth.

1. INCI & CAS

INCI: Glycerin · CAS: 56-81-5

2. Role in the formula

Glycerin fills a polyol-humectant role in the listed cosmetic formats. Read its percentage as formulation guidance, not an assay.

3. Typical use levels (formulation guide)

• Formulation guidance for gels and serums: 3–8% as a formulation guide.
• The creams use-level reference is 2–5% for the formula.
• For rinse-off, the recorded level is 2–4%.

Use the water phase to introduce Glycerin; no melting stage is required.

4. Regulatory sources & global compliance

• Treat any CosIng entry for Glycerin as a reference only; verify the grade and intended use under current market rules.
• An EU-market cosmetic under Regulation (EC) No 1223/2009 requires the complete cosmetic containing Glycerin to receive its own safety assessment before the finished product is marketed.
• Verify the purchased Glycerin grade using supplier data, alongside the applicable filing rules for the destination market.

5. Safety & risk assessment

Treat the listed amount as cosmetic-development guidance; it does not qualify a finished product as a drug or OTC product and the final formula should undergo patch and stability assessment.

6. Stability & packaging

Keep the bulk container closed and shaded in a cool area; select packaging with the formula's oxidation sensitivity in mind; confirm stability and pack fit with the final formula.

7. Claims language (Do / Don’t)

• The cosmetic role of Glycerin is presented as humectant function.

• The development record provides no basis for drug effects, clinical cures, or unsupported product certifications.
• The ingredient note for Glycerin is not evidence for whitening, treatment of acne, perspiration control, sun protection, or hair growth.