Brightening and Tone Care Serum Base

1. INCI & CAS

INCI: Glycerin · CAS: 56-81-5

2. Role in the formula

This entry describes glycerin as a polyol humectant for gels, emulsions, and washes, with a guide level rather than a batch result.

3. Typical use levels (formulation guide)

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

The guide places Glycerin in the water phase and calls for no melt step.

4. Regulatory sources & global compliance

• Database information on Glycerin does not replace review of the supplied grade and finished product under market rules.
• EU cosmetics rules under Regulation (EC) No 1223/2009 require a safety review of the finished cosmetic in which Glycerin is used for the complete formula intended for sale.
• Check the supplier's technical information for the Glycerin grade and confirm the relevant market filing list.

5. Safety & risk assessment

This level is a cosmetic-formulation guide; this reference is not approval for drug use or OTC marketing so the finished cosmetic should receive patch and stability checks.

6. Stability & packaging

Keep the bulk container closed and shaded in a cool area; for oxidation-sensitive formulas, consider an airless or pump pack; check the finished formula and its packaging together.

7. Claims language (Do / Don’t)

• The cosmetic formulation concept for Glycerin centers on humectant function.

• This product entry provides no basis for drug claims, cure claims, or a certification that is absent from the product records.
• This Glycerin listing does not establish whitening, acne treatment, antiperspirant effects, sunscreen use, or hair growth.

1. INCI & CAS

INCI: Propanediol · CAS: 504-63-2

2. Role in the formula

1,3-propanediol serves as a cosmetic humectant and solvent in this guidance, distinct from propylene glycol.

3. Typical use levels (formulation guide)

• The guide range for most water chassis is 2–8% for the formula.

Add Propanediol to the water phase.

4. Regulatory sources & global compliance

• The CosIng record for Propanediol, where listed, is informational rather than product-specific authorization.
• The EU Cosmetics Regulation (EC) No 1223/2009 requires a safety review of the finished cosmetic in which Propanediol is used for the specific product as it will be marketed.
• Confirm the actual Propanediol grade from supplier documentation and check requirements where the product will be sold.

5. Safety & risk assessment

The percentage is shown for cosmetic development; it should not be read as a drug authorization or OTC listing so the finished cosmetic should receive patch and stability checks.

6. Stability & packaging

Protect the sealed bulk from heat, sun, and unnecessary exposure; review airless or pump options if oxidation presents a concern; check the final package and formula together for compatibility and stability.

7. Claims language (Do / Don’t)

• The formulation note describes Propanediol as part of a cosmetic direction focused on propanediol solvent.

• This reference does not demonstrate a drug effect, a clinical cure, or certification status not established for the SKU.
• The documented facts for Propanediol does not establish a skin-lightening result, acne treatment, antiperspirant action, sunscreen efficacy, or hair growth.

1. INCI & CAS

INCI: Sodium Hyaluronate · CAS: 9067-32-7

2. Role in the formula

Sodium hyaluronate is the salt form used in cosmetic gels and serums. Molecular weight is a supplier choice and is not fixed on this page.

3. Typical use levels (formulation guide)

• For serums and gels, the reference gives 0.1–0.5% for the formula.
• The guide range for creams is 0.05–0.3% in this reference.

Hydrate in water before gum. Avoid dumping powder onto a finished thick gel.

4. Regulatory sources & global compliance

• If Sodium Hyaluronate 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 an assessment of the safety of the final cosmetic containing Sodium Hyaluronate rather than for an ingredient name alone.
• Review the supplier TDS for the received Sodium Hyaluronate grade, together with the target market's current filing requirements.

5. Safety & risk assessment

Read the recorded level as a cosmetic formulation guide; it does not establish drug approval or OTC-monograph status and the completed formula still requires stability and patch testing.

6. Stability & packaging

Use cool, sealed storage away from strong light for the bulk; consider an airless or pump format when oxidation sensitivity warrants it; test the selected package with the confirmed batch for stability and fit.

7. Claims language (Do / Don’t)

• The cosmetic role of Sodium Hyaluronate is presented as hydration-polymer.

• The listed information provides no basis for therapeutic results, cure claims, or unverified certification claims.
• This guide to Sodium Hyaluronate provides no basis for whitening, acne treatment, antiperspirant action, sunscreen use, or hair-growth outcomes.