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Routine cost calculator
What your routine really costs per month — price divided by how long each product lasts — and which product quietly dominates the budget.
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TimeUnder 1 min
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The science
The math your routine has been avoiding
01
Sticker price is the wrong number — cost per month is the real one, and it reorders everything. A $60 serum lasting six months costs $10 a month; a $25 "budget" product gone in three weeks costs more than the serum. Usage rate is the hidden variable: sunscreen used at the proper quarter-teaspoon dose empties fastest of anything on the shelf, which is why it deserves the budget-first slot rather than the afterthought slot.
02
The pattern this calculator usually exposes: one hero product consuming 40–60% of the monthly spend. Sometimes it earns it; often a mid-range swap performs identically — the evidence-backed workhorses (retinoids, vitamin C, moisturizer bases, sunscreen filters) all exist at drugstore prices, and dermatology guidance rarely distinguishes by brand tier.
Where the money should go: a spend hierarchy
Rank spend by evidence-per-dollar. Deserves budget: sunscreen you love wearing daily (the consistency purchase), a retinoid if goals justify it, and any texture upgrade that keeps you consistent. Drugstore-equivalent tier: cleansers (seconds of contact), basic moisturizers (same workhorse ingredients at every price), and hydrating serums. Rarely earns its line item: single-note botanical serums after the 1% line, tools that mechanize what fingers do, and duplicate actives across products — the calculator’s share bars expose these instantly. The pattern in most audited routines: one prestige product consuming half the budget while sunscreen — the highest-evidence line — gets the cheapest slot and grudging application.
FAQ
Common questions
How much should a skincare routine cost per month?+
A complete evidence-based routine (cleanser, moisturizer, SPF, one or two actives) runs $15–40 a month at drugstore prices. Spending more buys texture and experience — legitimate, but optional.
What is worth spending more on?+
Whatever keeps you consistent, and sunscreen you genuinely like — because generous daily application is the whole game. The actives themselves are dose-and-molecule products where price tracks brand, not efficacy.
Why does my cheap product cost the most per month?+
It runs out fast — cost per month is price divided by lifespan, and small bottles at moderate prices are the most expensive way to buy skincare.
Is expensive skincare worth it?+
For measurable outcomes, mostly no — active ingredients and their evidence are price-independent. For texture, scent, and the ritual that keeps you consistent, legitimately yes. Buy results at drugstore prices and pleasure deliberately, not accidentally.
How do I cut my routine cost without losing results?+
Swap the biggest share-bar product for a mid-range equivalent with the same headline active and dose, consolidate duplicate actives, and never economize by rationing sunscreen — underdosed SPF is the one saving that costs skin.