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As a leading supplier of cosmetic ingredients and a premier provider of testing services, Alfa Chemistry offers complete analytical and evaluative solutions for color cosmetics. Our state-of-the-art laboratories are equipped to handle everything from raw material characterization to finished product safety, efficacy validation, and regulatory compliance, ensuring your formulations meet the highest standards of quality and performance.
We support formulators, brand owners, and manufacturers in developing and marketing color cosmetics with confidence, covering a comprehensive range of product types including lipsticks, foundations, mascaras, eyeliners, eyeshadows, blushes, powders, and more.
Our services encompass all major categories of color cosmetic products:
These foundational tests ensure product stability, aesthetic appeal, and functional performance from production through to consumer use.
| Test Category | Specific Parameters |
|---|---|
| Rheological Properties | Viscosity measurement, flow behavior (thixotropy, yield stress), spreadability, consistency |
| Application Performance | Pay-off (product pickup), glide-on feel, blending ease, buildability, coverage uniformity |
| Physical Stability | Heat stability (40°C ± 2°C), cold stability (-10°C), freeze-thaw cycling, centrifugation stability |
| Optical Properties | Color measurement (CIE L*a*b*), chromaticity, color uniformity, gloss level, shimmer/sparkle analysis |
| Film Properties | Adhesion strength, flexibility, transfer resistance (e.g., lipstick kiss test), water resistance, oil resistance, rub-off resistance |
| Powder Characteristics | Particle size distribution (0.01-3500 μm), compressibility, flowability, dusting behavior, pressability |
We provide precise identification and quantification of ingredients to support formulation claims, quality control, and regulatory submissions.
| Analysis Type | Specific Tests |
|---|---|
| Colorant Analysis | Identification of certified colorants (FD&C, D&C), organic pigment characterization, natural dye verification (anthocyanins, carmine, chlorophyll), TiO2 content determination, iron oxide analysis, ultramarines quantification |
| Authentication Testing | Natural pigment authenticity verification, differentiation of synthetic vs. natural dyes, botanical extract fingerprinting, essential oil profiling |
| Filler Analysis | Talc content and purity, mica characterization, silica content, boron nitride analysis, calcium carbonate determination |
| Raw Material Identification | Wax characterization (melting behavior by DSC), oil/fat profiling, polymer identification, film-former analysis |
| Active Ingredient Quantification | UV filters (for tinted SPF products), antioxidants, preservatives, moisturizing agents |
We employ both in vitro and ex vivo models to substantiate your product's performance claims with robust scientific data.
| Efficacy Claim | Testing Methodology |
|---|---|
| Water Resistance | Immersion testing, simulated sweating, controlled rinse-off protocols, SPF retention for tinted sunscreens |
| Smudge & Transfer Resistance | Standardized rubbing tests (dry/wet), fabric contact transfer, kiss-print analysis, cup rim transfer simulation |
| Long-Wear/Staying Power | Time-lapse imaging under controlled conditions, wear simulation (8-24 hours), sebum exposure testing, temperature/humidity cycling |
| Color Fastness | Dry rub fastness (ISO 105-X12: grade ≥4), wet rub fastness (grade ≥3), light fastness (ISO 105-B02: xenon arc, color change ΔE ≤1.5), perspiration fastness (ISO 105-E04), saliva fastness (for lip products) |
| Coverage & Concealing Power | Contrast ratio measurement, opacity testing, color matching efficiency, skin imperfection coverage quantification |
| Foundation Coverage | Film thickness measurement, evenness of coverage, buildability assessment, skin tone correction factor |
| UV Protection (for tinted SPF) | SPF determination (ISO 24444), UVA protection factor (ISO 24442/24443), broad-spectrum compliance, photostability |
| Waterproof Performance | Water immersion with controlled agitation, SPF retention calculation, water resistance rating |
| Color Stability | Long-term color retention under various storage conditions, light exposure testing, temperature cycling effects |
Protecting consumer health is paramount. Our safety evaluations follow protocols aligned with ISO, OECD, and pharmacopeia guidelines to assess biocompatibility and toxicological safety.
| Safety Parameter | Specific Tests | Reference Standards |
|---|---|---|
| Heavy Metal Analysis | Lead (Pb), Arsenic (As), Mercury (Hg), Cadmium (Cd), Antimony (Sb), Nickel (Ni) | ICP-MS per USP<232>/<233>, detection limits ≤0.1 μg/g |
| Preservative Efficacy | Challenge test (bacteria, yeast, mold), PET per USP<51>/EP, preservation validation | USP 51, EP 5.1.3, ISO 11930 |
| Sensitization Potential | Pigment allergenicity assessment, fragrance allergen screening (26 EU allergens), preservative allergy risk | In chemico/in vitro methods (DPRA, h-CLAT) |
| Skin Irritation | Reconstructed human epidermis (RhE) model, MTT viability assay, IL-1α release | OECD TG 439 |
| Eye Irritation | Bovine Corneal Opacity and Permeability (BCOP), Hen's Egg Test - Chorioallantoic Membrane (HET-CAM), Reconstructed human corneal epithelium | OECD TG 437, 438, 492 |
| Phototoxicity | 3T3 NRU phototoxicity test, ROS assay, UV spectrum analysis | OECD TG 432 |
| Nickel Release | Nickel migration testing (for metal components in compacts/packaging) | EN 1811, REACH requirements |
| Asbestos Contamination | Talc purity testing, polarized light microscopy (PLM), X-ray diffraction (XRD), Transmission electron microscopy (TEM) with EDS | USP<232>/<233> |
| VOC Testing | Volatile Organic Compound content in aerosols, propellant analysis, solvent emission quantification | CARB, EPA Method 24, EU Directive 2004/42/EC |
| Microbiological Quality | Total Aerobic Microbial Count (TAMC), Total Yeast & Mold Count (TYMC), pathogen absence (S. aureus, P. aeruginosa, C. albicans) | USP<61>,<62>, EP 2.6.12, 2.6.13 |
| Nanoparticle Safety | Particle size distribution, morphology, surface charge, penetration potential, cytotoxicity screening | SCCS guidance on nanomaterials, OECD TG |
Please kindly note that our products are for research use only.
If you have any questions, please contact us. You will get a satisfactory answer.
