Vitamin C

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, the reference gives 1–3% as a formulation guide.
• 0.5–2% is listed for gel-creams as a formulation guide.

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

4. Regulatory sources & global compliance

• An entry for 3-O-Ethyl Ascorbic Acid in CosIng is not authorization for a material grade or completed cosmetic; review local requirements.
• For an EU-market product, Regulation (EC) No 1223/2009 requires an assessment of the safety of the final cosmetic containing 3-O-Ethyl Ascorbic Acid in the final product context.
• Confirm the actual 3-O-Ethyl Ascorbic Acid grade from supplier documentation and check requirements where the product will be sold.

5. Safety & risk assessment

Treat the listed amount as cosmetic-development guidance; it is not evidence of drug approval or OTC authorization and the completed formula still requires stability and patch testing.

6. Stability & packaging

Keep the bulk container closed and shaded in a cool area; select packaging with the formula's oxidation sensitivity in mind; then verify formula stability and pack compatibility on the confirmed batch.

7. Claims language (Do / Don’t)

• The listed cosmetic direction for 3-O-Ethyl Ascorbic Acid emphasizes ethylated vitamin C.

• The cosmetic listing does not support drug effects, clinical cures, or unsupported product certifications.
• The cosmetic guidance for 3-O-Ethyl Ascorbic Acid does not substantiate whitening, treatment of acne, perspiration control, sun protection, or hair growth.

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 stated reference for serums is 0.3–0.5% with a suitable solvent.

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

4. Regulatory sources & global compliance

• CosIng may identify Ferulic Acid 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 finished product's safety, including the formula in which Ferulic Acid is used, to be assessed before the finished product is marketed.
• Check the supplier's technical information for the Ferulic Acid grade and confirm the relevant market filing list.

5. Safety & risk assessment

The concentration shown is guidance 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

Keep the bulk container closed and shaded in a cool area; take oxidation sensitivity into account when selecting the final pack; assess the confirmed formula for stability and package compatibility.

7. Claims language (Do / Don’t)

• The cosmetic formulation concept for Ferulic Acid centers on ferulic antioxidant.

• This ingredient reference cannot substantiate drug effects, cures, or certification claims that go beyond the documented ingredient information.
• This reference for Ferulic Acid offers no support for whitening, acne-treatment, antiperspirant, sun-protection, or hair-growth benefits.

1. INCI & CAS

INCI: Glycerin · CAS: 56-81-5

2. Role in the formula

Cosmetic washes, gels, and emulsions use glycerin in a polyol-humectant role; the listed level is for formulation development.

3. Typical use levels (formulation guide)

• Formulation guidance for gels and serums: 3–8%.
• The stated reference for creams is 2–5%.
• Formulation guidance for rinse-off: 2–4% as a formulation guide.

Incorporate Glycerin in the water phase without a separate melt step.

4. Regulatory sources & global compliance

• Use CosIng's information on Glycerin as a reference, then verify the specific grade and intended use under market rules.
• The finished-product provisions of Regulation (EC) No 1223/2009 require a safety review of the finished cosmetic in which Glycerin is used before release of the finished cosmetic.
• Confirm the received Glycerin grade against supplier documentation, then verify the intended market's filing requirements.

5. Safety & risk assessment

The use-level note is a reference for cosmetic formulation; it does not qualify a finished product as a drug or OTC product so assess patch response and stability in the final formula.

6. Stability & packaging

Store sealed bulk away from heat and sunlight; 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 formulation concept for Glycerin centers on humectant function.

• The ingredient record does not demonstrate claims of drug action or cure, or a product certification outside the supporting records.
• This reference for Glycerin offers no support for whitening, acne-treatment, antiperspirant, sun-protection, or hair-growth benefits.