Brightening And Tone Care Serum

1. INCI & CAS

INCI: Glycerin · CAS: 56-81-5

2. Role in the formula

The reference uses glycerin as a polyol humectant across washes, gels, and emulsions. Treat the percentage as development guidance.

3. Typical use levels (formulation guide)

• For gels and serums, use 3–8% for the formula.
• The creams use-level reference is 2–5% in this reference.
• The rinse-off use-level reference is 2–4% for the formula.

The water phase is the addition point for Glycerin; a separate melt is unnecessary.

4. Regulatory sources & global compliance

• If Glycerin 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 Glycerin to undergo a safety assessment as part of the finished cosmetic's safety documentation.
• Check the supplier's technical information for the Glycerin grade and confirm the relevant market filing list.

5. Safety & risk assessment

This formulation note gives a cosmetic-use reference level; it does not establish drug approval or OTC-monograph status and the final formula should undergo patch and stability assessment.

6. Stability & packaging

For bulk storage, avoid warmth and direct sun and keep the container closed; if the formula is oxidation-sensitive, an airless or pump format may be considered; use batch testing to verify stability and package compatibility.

7. Claims language (Do / Don’t)

• The recorded cosmetic positioning for Glycerin highlights humectant function.

• The ingredient record cannot verify claims of drug activity, a clinical cure, or an undocumented product certification.
• The documented facts for Glycerin cannot establish skin whitening, acne care, sweat reduction, sun protection, or hair-growth outcomes.

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 level shown for most water chassis is 2–8% for the formula.

Incorporate Propanediol in the water phase.

4. Regulatory sources & global compliance

• If CosIng lists Propanediol, that listing remains ingredient information; check rules for the intended market and use.
• The EU Cosmetics Regulation (EC) No 1223/2009 requires the final cosmetic with Propanediol to undergo a safety assessment for the completed formula, not simply for an ingredient in isolation.
• Compare the received Propanediol 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 listed level does not itself confer drug or OTC status so the finished cosmetic should receive patch and stability checks.

6. Stability & packaging

Keep the ingredient in cool, closed bulk storage away from sunlight; if oxidation risk calls for it, review a pump or airless format; assess the confirmed formula for stability and package compatibility.

7. Claims language (Do / Don’t)

• The recorded cosmetic positioning for Propanediol highlights propanediol solvent.

• The available ingredient details does not establish claims of drug action or cure, or a product certification outside the supporting records.
• The ingredient record for Propanediol does not substantiate whitening, treatment of acne, perspiration control, sun protection, 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)

• Serums and gels: 0.1–0.5% in this reference.
• The level shown for creams is 0.05–0.3%.

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

4. Regulatory sources & global compliance

• CosIng provides reference information for Sodium Hyaluronate; confirm the specific grade and intended use against market requirements.
• Regulation (EC) No 1223/2009 sets the requirement for a safety review of the finished cosmetic in which Sodium Hyaluronate is used as part of the finished cosmetic's safety documentation.
• Verify the purchased Sodium Hyaluronate grade using supplier data, alongside the applicable filing rules for the destination market.

5. Safety & risk assessment

Use the stated level as reference guidance for cosmetic formulation; it makes no claim of drug or OTC authorization and patch and stability testing remain part of finished-product review.

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; then verify formula stability and pack compatibility on the confirmed batch.

7. Claims language (Do / Don’t)

• The listed cosmetic direction for Sodium Hyaluronate emphasizes hydration-polymer.

• This product entry cannot substantiate therapeutic results, cure claims, or unverified certification claims.
• The ingredient note for Sodium Hyaluronate does not substantiate whitening, acne-treatment, antiperspirant, sun-protection, or hair-growth benefits.