Free Cosmetic & Perfume Manufacturing Date Decoder

The INKEY List Batch Code Checker

Skincare

The INKEY List Batch Code Format

Supported The INKEY List codes use year-letter, year-tail plus month-letter, or year-tail plus day-of-year formats.

Examples: J01, K12, 5123

About The INKEY List Codes

The INKEY List products are ingredient-led skincare items that people often buy in backups or build into routines around niacinamide, hyaluronic acid, retinol, and salicylic acid. A batch-code estimate can help when comparing older stock, marketplace listings, or discount bundles for active formulas.

This is especially useful because many shoppers know the ingredient name first and want fresher stock for acids, retinoids, and targeted serums.

Popular The INKEY List Products

Common The INKEY List keywords include Hyaluronic Acid Serum, Salicylic Acid Cleanser, Niacinamide Serum, Oat Cleansing Balm, Retinol Serum, Caffeine Eye Cream, Peptide Moisturizer, Azelaic Acid, and Succinic Acid treatment.

  • Hydration and barrier: hyaluronic acid, peptide moisturizer, and ceramide-support products
  • Acne and texture: salicylic acid cleanser, niacinamide, succinic acid, and exfoliating care
  • Anti-aging: retinol serum, collagen support, and peptide treatments
  • Everyday cleansing: oat cleansing balm, cleanser, and simple routine products

Where to Find It

  • Bottle label or base
  • Tube crimp or carton flap
  • Printed LOT area near the barcode
  • Use the short batch code instead of the product size or retail barcode

Tips for Checking The INKEY List Batch Codes

Enter the exact short code from the bottle, tube, or box and compare inner and outer packaging if both are available. This helps avoid mixing the lot code with item numbers or barcode details.

For acids, retinoids, and other actives, also check the PAO symbol and formula condition. Smell, color, or texture changes may matter even when the estimated manufacturing date still seems fine.

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