Ethylhexyl Methoxycinnamate
It blends seamlessly with common cosmetic oils, such as capric/caprylic triglycerides, dimethicone, and plant-based options like jojoba oil, without needing complex emulsification steps. This allows it to integrate smoothly into diverse product textures, from lightweight lotions and quick-absorbing serums to rich facial creams and body balms, all while keeping the product transparent and stable, even when stored in varying temperatures. Beyond its core role of shielding against UVB rays (280–320nm)—the main cause of sunburn and immediate skin redness—EHMC offers practical advantages. It directly lowers sunburn risk and eases UVB-induced pigmentation, like dark spots, helping maintain an even skin tone with regular use.
Unlike mineral UV filters (e.g., zinc oxide), its oil-based nature eliminates the annoying “white cast” that can look unnatural on skin, making it perfect for tinted products such as BB creams, foundations, and tinted sunscreens that need a seamless, natural finish. When paired with UVA absorbers (e.g., Avobenzone or Benzophenone-4), it creates broad-spectrum UV defense, covering both burning UVB and aging UVA rays. Plus, its lightweight texture feels non-greasy on skin, absorbs quickly without stickiness, and is non-comedogenic—so it won’t clog pores, suiting oily, acne-prone, and sensitive skin types.
Key Technical Parameters
| Appearance | Pale yellow liquid | |
| Hazen | ≤70 | |
| Odor | Slight characteristic | |
| Identity(IR) USP <197F> | Matches reference spectrum | |
| Identity(Retention time) USP <621> | Matched reference retention time | |
| UV Specific extinction (E1% 1cm,310nm,ethanol) USP <197U> | ≥850 | |
| Specific gravity(25℃)USP<841> | 1.005~1.013 | |
| Refractive Index (at 20℃) USP<831> | 1.542~1.548 | |
| Peroxide value,% | ≤1.0 | |
| Acidity (0.1N NaOH) (USP) | ≤0.8 | |
| Chromatographicpurity GC USP < 621> | Purity(%) | ≥99.0 |
| Each Impurity(%) | ≤0.5 | |
| Total Impurities(%) | ≤2.0 | |
| Assay (%) USP<621> | 95.0~105.0 | |
EHMC’s UV protection works by stopping harmful UVB before it penetrates the skin. The methoxycinnamate group in its structure acts as a UV absorber: when hit by UVB, its electrons absorb the radiant energy, shifting from a stable ground state to an excited state. Instead of harming skin cells (via DNA damage or free radical production), the molecule releases this energy as low-heat infrared radiation—undetectable to the skin—and returns to stability. To boost its durability, it’s often mixed with photostabilizers like octocrylene, which prevent it from breaking down under prolonged sun exposure, ensuring long-lasting protection throughout the day.
Applications
● Sunscreens (UVB-focused or broad-spectrum blends)
● Tinted cosmetics (BB creams, foundations, tinted moisturizers)
● Daily skincare (day creams, lightweight serums)
● Body care (body lotions, sunscreen sprays)
● Gentle kids’ sun protection products
Advantages
● Efficiently blocks UVB (280–320nm) to reduce sunburn and pigmentation
● Oil-soluble, no "white cast" (ideal for tinted formulas)
● Blends easily with UVA absorbers for broad-spectrum protection
● Lightweight, non-greasy, and non-comedogenic (suits all skin types)
● Globally compliant for cosmetic use
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