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The Skincare Routine Cost Calculator computes the total annual, monthly, and daily cost of your full skincare routine including cleanser, toner/essence, AM and PM serums, moisturizer, sunscreen, and treatment products (retinol, exfoliants). It accounts for product price and how long each product lasts, then aggregates per-product monthly costs to a complete routine total. Modern routines following K-beauty or J-beauty conventions can include 6-10 products and exceed $1,500/year — making the calculator valuable for understanding the true investment.

Formule

Monthly Cost per Product = Price / Lasts (months); Annual Cost = Σ(Monthly per Product) × 12
P
Product Price (currency) — Cost per product
M
Months Lasting (months) — How long product lasts with daily use

Guide étape par étape

  1. 1Enter price and shelf-life-in-months for each routine product
  2. 2Cleanser typically lasts 2-4 months at twice-daily use
  3. 3Toner/essence: 3-6 months depending on bottle size
  4. 4Serums: 2-4 months for 30 ml bottles
  5. 5Moisturizer: 2-4 months at twice-daily use
  6. 6Sunscreen: 1-3 months for proper application amounts
  7. 7Treatment (retinol): 4-8 months as used less frequently
  8. 8Calculator computes monthly cost per product, total monthly, annual, and daily

Exemples résolus

Entrée
Basic routine: $25 cleanser/3mo, $45 moisturizer/3mo, $25 SPF/2mo
Résultat
Monthly $35.83, annual $430
Entrée
Premium 7-product routine totaling $260 in products
Résultat
Annual $750-1,200 depending on duration assumptions
Entrée
Korean 10-step routine with all premium items
Résultat
Annual $1,500-2,500 — substantial discretionary spending

Erreurs courantes à éviter

  • ✕Overestimating shelf life — products labeled "12 months after opening" lose potency in 4-6 months for actives
  • ✕Not factoring in unfinished products thrown away due to spoilage or change of routine
  • ✕Ignoring the cost of seasonal additions (heavier moisturizers winter, more sunscreen summer)
  • ✕Counting sample sizes — calculate based on full-size products you actually buy regularly

Questions fréquentes

How long do skincare products actually last?

Use the PAO (period after opening) symbol on packaging — typically 6M, 12M, or 24M. Active ingredients (vitamin C, retinol) degrade faster — replace within 3-6 months even if not visibly spoiled.

How can I reduce routine cost without sacrificing results?

Cut from 8 products to 4-5 essentials (cleanser, moisturizer, sunscreen, one serum). Use The Ordinary or CeraVe for active ingredients at 10-20% of premium prices. Skip products with similar functions (multiple hydrating toners).

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Paramètres

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