Ceramide AS

Product Description

Green Stone Swiss supplies high-purity Ceramide AS manufactured under strict GMP-aligned quality systems, ensuring consistent batch-to-batch performance for professional cosmetic and personal care brands worldwide. Our direct factory supply model delivers reliable bulk quantities with full technical documentation and free sample support.

Ceramide AS is the acetyl sphingosine ceramide, a defined barrier lipid. It is not Ceramide NP, Ceramide NS, or Ceramide AP. This grade is a white to off-white powder that disperses in the oil phase.

Barrier creams continue to specify this INCI when the formula needs this ceramide species beside the more common NP grade. Cosmetic-grade Ceramide AS remains a high-interest bulk lipid when identity and assay are on the COA.

Product Specification

• INCI Name: Ceramide AS
• CAS No.: 100403-19-8
• Molecular Formula: C₂₀H₃₉NO₃
• Molecular Weight: 341.53 Da
• Appearance: White to off-white powder
• Purity: Typical ≥95%
• Solubility: Dispersible in oils; insoluble in water
• Suggested pH: 4.5–7.0 in finished emulsions
• Storage: Store in a cool, dry place; protect from moisture

Key Benefits & Applications

Ceramide AS is a defined barrier lipid used in leave-on creams and lotions.

• Added to the oil phase of barrier creams and lotions
• A different ceramide species from Ceramide NP
• Used at a low dose beside other barrier lipids
• Fits face creams aimed at dry, tight-feeling skin
• Typical use level: 0.05–0.5% in the finished formula

Formulation Guidelines

Follow these guidelines to disperse Ceramide AS in the oil phase.

• Suggested Use Level: Typical 0.05–0.5% in the finished formula
• pH Range: Suggested 4.5–7.0 for the finished emulsion
• Addition: Melt into the oil phase with the other lipids before emulsification
• Stability: Keep containers closed; the powder is not water-soluble
• Combine with Ceramide Np Powder when the chassis needs both Ceramide AS and Ceramide NP.