Audit.
Every product in our catalogue must pass verifiable physical stability, active titration, and microbiological hurdles before release.
Cosmetic and nutritional wellness formulas frequently suffer from batch degradation, unverified filler ratios, and phase separation. At Zenitto Skin, Product Manager Irina Petrova oversees incoming laboratory certificates and stability logs from our Austin desk. We evaluate six physical formats: capsules, tablets, powders, softgels, topical creams, and specialized vitamin and wellness supplements. If an active ingredient fails HPLC assay or shows particle crystallization after thermal cycling, the lot is rejected.
Classify.
Physical release formats have distinct shelf-life vulnerabilities and manufacturing parameters.
Customers compare products based on active composition, dosage form, packaging volume, capsule count, unit price, and batch promotions. Below is our formal breakdown of the equipment, testing materials, and QA criteria applied to each delivery format across our six catalogue lines.
Topical Creams & Balms
Emulsion systems, lipid barrier pastes, and anhydrous balms. Evaluated for lamellar phase stability and preservative efficacy.
Softgel Lipid Capsules
Translucent bovine or botanical softgels housing cold-pressed seed oils, astaxanthin, and lipid-soluble vitamin complexes.
Hard Capsules & Tablets
Vegetable cellulose (HPMC) capsules and enteric tablets delivering standardized botanical extracts and mineral cofactors.
Micronized Powders
Pure cosmetic vitamin C, niacinamide powders, enzymatic cleansing powders, and botanical wellness isolates weighed on precision balances.
Targeted Liquid Serums
Multi-molecular hyaluronic acid, copper tripeptide (GHK-Cu), and antioxidant fluids in tinted apothecary dropper vials.
Mineral Sunscreens & Pastes
Non-nano zinc oxide physical defenses and soothing Centella recovery pastes in high-barrier multi-layer tubes.
Calibrate.
Four mandatory laboratory audit gates apply to every SKU before inclusion in our Austin catalogue.
We reject the industry practice of relying on unverified certificates of analysis from brokers. Irina Petrova verifies third-party analytical records for heavy metals, microbiology, active titration, and packaging compatibility.
| QA Audit Gate | Analytical Methodology | Mandatory Threshold | Failure Action |
|---|---|---|---|
| 1. Active Titration | High-Performance Liquid Chromatography (HPLC / UPLC) | 95.0% to 105.0% of declared concentration | Immediate lot rejection; batch destruction notice issued |
| 2. Elemental Impurities | ICP-MS (Inductively Coupled Plasma Mass Spectrometry) | Pb < 2 ppm, As < 1 ppm, Cd < 0.5 ppm, Hg < 0.1 ppm | Supplier de-listing; report filed with industry association |
| 3. Microbial Sterility | USP 61/62 Aerobic Plate Count & Yeast/Mold | Total APC < 100 CFU/g; Zero Candida, E. coli, S. aureus | Complete quarantine and re-sterilization prohibition |
| 4. Container Migration | Accelerated extractables & leachables GC-MS testing | Zero detectable phthalates, BPA, or heavy metals in formula | Packaging supplier disqualified |
Price.
How quotation figures are calculated across our six catalogue lines.
Zenitto Skin does not maintain fixed retail price tags. Quotes depend on brand, packaging volume, capsule count, active raw material grade, delivery channel, and promotional terms. Below are the verified operator corridors for every product line in our portfolio.
$33–$95 USD per unit
Calculated by peptide purity, squalane lipid source, and airless container mechanical tolerances. Standard unit size: 50ml.
$28–$125 USD per unit
Priced on active antioxidant grade, copper peptide weight, and light-shielded amber dropper construction. Standard unit size: 30ml.
$27–$65 USD per unit
Determined by glacier water purity, biocellulose sheet tensile density, and overnight lipid emulsion stability. Standard size: 75ml jar.
$14–$35 USD per unit
Formulated with sulfate-free coconut amino acid surfactants and oat extracts. Standard unit size: 150ml pump bottle.
$33–$45 USD per unit
Governed by pharmaceutical non-nano zinc oxide dispersion and multi-layer oxygen-barrier squeeze tubes. Standard size: 60ml.
$39–$95 USD per unit
Based on titrated Centella asiatica (TECA 95%), 5% D-panthenol, and pure aluminium apothecary packaging. Standard size: 50ml.
Inquire.
Request formal QA documentation, batch testing certificates, or custom format quotes from our Austin product desk.
Submit your details below. Product Manager Irina Petrova will review formula requirements and reply with verified batch analyses within one business day.