Brightening Vitamin C Serum

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)

• 1–3% is listed for serums for the formula.
• The gel-creams use-level reference is 0.5–2% for the formula.

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

4. Regulatory sources & global compliance

• Use CosIng's information on 3-O-Ethyl Ascorbic Acid as a reference, then verify the specific grade and intended use under market rules.
• EU cosmetics rules under Regulation (EC) No 1223/2009 require an assessment addressing the safety of the finished product that contains 3-O-Ethyl Ascorbic Acid for the specific product as it will be marketed.
• For 3-O-Ethyl Ascorbic Acid, check the purchased grade against its supplier TDS and review filing requirements in the destination market.

5. Safety & risk assessment

The use-level note is a reference for cosmetic formulation; the listed level does not itself confer drug or OTC status 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; where oxidation is a concern, evaluate airless or pump packaging; confirm final stability and pack compatibility on a representative batch.

7. Claims language (Do / Don’t)

• The recorded cosmetic positioning for 3-O-Ethyl Ascorbic Acid highlights ethylated vitamin C.

• This formulation entry does not demonstrate a drug effect, a clinical cure, or certification status not established for the SKU.
• The ingredient note for 3-O-Ethyl Ascorbic Acid cannot establish 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)

• 0.3–0.5% with a suitable solvent is listed for serums for the formula.

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

4. Regulatory sources & global compliance

• The CosIng record for Ferulic Acid, where listed, is informational rather than product-specific authorization.
• EU market placement under Regulation (EC) No 1223/2009 requires an assessment of the safety of the final cosmetic containing Ferulic Acid before release of the finished cosmetic.
• Confirm the received Ferulic Acid grade against supplier documentation, then verify the intended market's filing requirements.

5. Safety & risk assessment

This formulation note gives a cosmetic-use reference level; it is not evidence of drug approval or OTC authorization and the completed formula still requires stability and patch testing.

6. Stability & packaging

Protect sealed bulk from warmth and direct light; consider an airless or pump format when oxidation sensitivity warrants it; check the final package and formula together for compatibility and stability.

7. Claims language (Do / Don’t)

• The cosmetic role of Ferulic Acid is presented as ferulic antioxidant.

• This product entry does not support drug effects, cures, or certification claims that go beyond the documented ingredient information.
• The available details for Ferulic Acid does not demonstrate whitening, acne care as treatment, perspiration reduction, 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)

• For gels and serums, the recorded level is 3–8%.
• The level shown for creams is 2–5% for the formula.
• Rinse-off may use the guide range 2–4% in this reference.

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

4. Regulatory sources & global compliance

• CosIng may identify Glycerin as an ingredient, but its entry does not approve a material grade or finished formula.
• The framework in Regulation (EC) No 1223/2009 requires the final cosmetic with Glycerin to undergo a safety assessment before the cosmetic is placed on the EU market.
• Verify the purchased Glycerin grade using supplier data, alongside the applicable filing rules for the destination market.

5. Safety & risk assessment

The listed use rate is intended as a cosmetic-development guide; no drug approval or OTC status is conferred by this entry and the completed cosmetic needs its own patch and stability checks.

6. Stability & packaging

Protect sealed bulk from warmth and direct light; choose a package with oxidation sensitivity in view; confirm final stability and pack compatibility on a representative batch.

7. Claims language (Do / Don’t)

• The listed cosmetic direction for Glycerin emphasizes humectant function.

• The development record provides no basis for therapeutic outcomes, clinical cures, or a certification the finished SKU does not hold.
• This Glycerin listing does not support whitening, acne-treatment, antiperspirant, sun-protection, or hair-growth benefits.