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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.
Формула
- P
- Product Price (currency) — Cost per product
- M
- Months Lasting (months) — How long product lasts with daily use
Пошаговое руководство
- 1Enter price and shelf-life-in-months for each routine product
- 2Cleanser typically lasts 2-4 months at twice-daily use
- 3Toner/essence: 3-6 months depending on bottle size
- 4Serums: 2-4 months for 30 ml bottles
- 5Moisturizer: 2-4 months at twice-daily use
- 6Sunscreen: 1-3 months for proper application amounts
- 7Treatment (retinol): 4-8 months as used less frequently
- 8Calculator computes monthly cost per product, total monthly, annual, and daily
Решённые примеры
Распространённые ошибки
- ✕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
Часто задаваемые вопросы
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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