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Barrier

Ceramide AP (Ceramide 6-II)

A key ceramide subclass that supports desquamation regulation and barrier function — commonly included alongside Ceramide NP and EOP in barrier repair formulas.

Barrier repairSkin renewalCeramideMoisturizing
✓ Safe
Comedogenic Rating
0/5
Irritation Potential
0/5

What is it?

Ceramide AP contains an alpha-hydroxy fatty acid linked to phytosphingosine. In INCI nomenclature it's listed as Ceramide AP or Ceramide 6-II. Like other ceramides, it's available in both synthetic and plant-derived forms that are structurally identical to human skin ceramides.

Barrier repair, skin cell turnover regulation, TEWL reduction, complement to NP and EOP in multi-ceramide formulas.

Key Benefits

✦
Desquamation Support
Ceramide AP plays a role in regulating the enzymes responsible for natural skin shedding — helping maintain healthy cell turnover without over-exfoliation or barrier disruption.
◈
Lipid Matrix Contribution
As one of the major ceramide classes in the stratum corneum, Ceramide AP contributes to the organized lamellar lipid structure that maintains barrier integrity and water retention.
✧
Synergistic with Ceramide NP and EOP
The combination of ceramides NP, AP, and EOP most closely mimics the natural ceramide distribution in healthy skin, producing better barrier outcomes than any single ceramide class alone.

Suitable for

All skin typesDry and dehydrated skinCompromised skin barrierAtopic skinMature skin

Main Actions

✓ Barrier repair✓ Desquamation regulation✓ TEWL reduction✓ Lipid matrix support
Part of a system, not standalone

Ceramide AP is rarely used in isolation. Its clinical benefit is best established as part of a multi-ceramide formula that includes NP, AP, and EOP — the combination found in leading dermatologist-recommended moisturizers.

CategoryBarrier Repair

Frequently Asked Questions

What does Ceramide AP (Ceramide 6-II) do for skin?
Barrier repair, skin cell turnover regulation, TEWL reduction, complement to NP and EOP in multi-ceramide formulas.
Who should use Ceramide AP (Ceramide 6-II)?
Ceramide AP (Ceramide 6-II) is suitable for: All skin types, Dry and dehydrated skin, Compromised skin barrier, Atopic skin, Mature skin.
Are there any warnings about Ceramide AP (Ceramide 6-II)?
Ceramide AP is rarely used in isolation. Its clinical benefit is best established as part of a multi-ceramide formula that includes NP, AP, and EOP — the combination found in leading dermatologist-recommended moisturizers.

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