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Nonionic O/W emulsifier based on ethoxylated fatty alcohols with optimized HLB for robust emulsion stability.
Excellent compatibility with a broad range of cosmetic actives, preservatives, and electrolytes.
Low-irritation profile suitable for sensitive-skin and leave-on formulations.
Enables formation of fine, stable oil-in-water emulsions at low usage levels (typically 1–5 wt%).
Free from parabens, formaldehyde donors, and alkylphenol ethoxylates (APEO-free).
Lightweight facial moisturizers and day creams.
Body lotions and hydrating milks for sensitive skin.
Sun care emulsions (SPF formulations with organic/inorganic UV filters).
Make-up base products and tinted moisturizers.
Post-procedure skincare and dermatological emollient systems.
| Chemical Type | Nonionic surfactant — Ethoxylated C12–C15 fatty alcohol (approx. 40 EO units) |
| Product Form | Pale yellow to light amber viscous liquid |
| Appearance | Clear to slightly opalescent, homogeneous liquid at 25 °C |
| pH (1% aqueous solution) | 5.5–7.0 |
| Active Content | 98–100 wt% |
| Solubility | Freely soluble in water and common cosmetic alcohols; dispersible in oils |
| Storage Stability | Stable for ≥24 months at 5–30 °C in unopened original packaging |
| Primary Applications | Oil-in-water emulsions for dermocosmetic and pharmaceutical topical formulations |
Q1: What is the primary function of Emulan NP 4070 in cosmetic and personal care formulations?
A: Emulan NP 4070 is a non-ionic, oil-in-water emulsifier designed to stabilize aqueous-based emulsions—particularly those containing medium-to-high polarity oils. It supports the formation of elegant, low-viscosity lotions and milks with good skin feel and long-term physical stability.
Q2: Is Emulan NP 4070 compatible with common cosmetic actives and electrolytes?
A: Yes, it demonstrates broad compatibility with typical cosmetic ingredients including water-soluble actives (e.g., niacinamide, glycerin), preservatives, and moderate levels of electrolytes. However, high concentrations of multivalent ions or strongly anionic surfactants may reduce emulsion stability and should be evaluated case by case.
Q3: How should Emulan NP 4070 be incorporated into a formulation?
A: It is typically added to the oil phase and heated to 70–75 °C before emulsification. Pre-mixing with other oil-soluble components improves dispersion. Homogenization during phase addition helps achieve fine droplet size and optimal stability.
Q4: Does Emulan NP 4070 meet regulatory requirements for use in leave-on and rinse-off cosmetics?
A: Emulan NP 4070 is manufactured under BASF’s quality management system and complies with international cosmetic ingredient standards, including INCI nomenclature and general safety expectations for non-ionic emulsifiers. Formulators are responsible for final product compliance based on regional regulations and intended use.
Q5: What is the typical dosage range for Emulan NP 4070 in emulsion systems?
A: Dosage depends on oil phase composition, desired texture, and stability targets—but it is generally used at low concentrations, typically ranging from 0.1% to 2% by weight of the total formulation.
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