Usage Limits and Stability of MakeUp-Wash™ with Ceramide NP
Asked by: Anonymous
On: January 12, 2026
Product Type:
Cosmetics
Question
I would like to inquire about PEG-6 Caprylic/Capric Glycerides (MakeUp-Wash™) regarding the following:
- The maximum and minimum usage percentages (% leave on max/min) for leave-on products.
- Safety data information.
- Stability and compatibility when formulated together with
Ceramide NP.
Answer
Regarding your inquiry about MakeUp-Wash™ (PEG-6 Caprylic/Capric Glycerides) and its use with Ceramide NP, here are the details:
1. Usage Rates for Leave-on Products
- Recommended Range: 1% – 5%
- Maximum (Leave-on): While there is no strict regulatory "maximum" for safety in many regions, it is typically used up to 5-10% in leave-on formulations (such as micellar waters that are not rinsed off). However, concentrations above 5% may leave a tacky or sticky feel on the skin and could potentially cause eye irritation if used near the eyes.
- Minimum (Leave-on): 0.5% – 1% is often used when the goal is simply to provide a slight emollient effect or to help solubilize small amounts of oils/fragrances.
2. Safety Data
- Irritation: PEG-6 Caprylic/Capric Glycerides is considered a very mild, non-ionic surfactant. It is widely used in "no-rinse" micellar waters because of its low irritation potential.
- Eye Safety: If the concentration is too high (usually above 5-7%), some users may experience a stinging sensation in the eyes. If this occurs, it is recommended to reduce the concentration.
- Skin Barrier: It acts as a "re-fatting" agent, meaning it helps maintain the skin's lipid balance rather than stripping it like harsher detergents.
3. Stability and Compatibility with Ceramide NP
- Compatibility: MakeUp-Wash™ is highly compatible with Ceramide 3 (Ceramide NP). There are no known negative chemical reactions between these two ingredients.
- Stability: PEG-6 Caprylic/Capric Glycerides can actually help improve the stability of a formula containing lipids. Since Ceramide NP is a lipid that is notoriously difficult to dissolve, the surfactant nature of MakeUp-Wash™ can assist in keeping the formula homogeneous.
- Formulation Tip:
- If using pure Ceramide 3 (Ceramide NP) powder, you must dissolve it in the oil phase at high temperatures (70-80°C).
- For easier integration into water-based leave-on products (like a ceramide toner), using Ceracare™ NP50 (Water/Oil Dispersible Ceramide NP) is recommended, as it disperses easily in water and remains stable alongside MakeUp-Wash™.
Summary for your formulation:
If you are creating a leave-on treatment, a combination of 3% MakeUp-Wash™ and 0.1-0.5% Ceracare™ NP50 would provide a stable, gentle, and barrier-repairing result.
