18 Free Skincare Tools Built on Cosmetic Pharmacology
No sponsored clean-beauty fearmongering, no paywalls, and zero cloud telemetry. Decode raw INCI labels, calculate Henderson-Hasselbalch free acid values, convert retinoid receptor potencies, and sequence your bathroom counter strictly by molecular viscosity.
Interactive Formulation & Triage Suite
Select any tool below to launch its client-side workspace.
Skincare Routine Builder & Viscosity Sequencer
Design an optimal 7-day AM, Midday SPF, and PM regimen tailored to your skin type. Automatically ordered strictly from thinnest to thickest molecular viscosity with real-time active clash detection.
INCI Ingredient List Analyzer & Safety Decoder
Paste any raw cosmetic ingredient label from your moisturizer, serum, or cleanser. Get an instant, calm 4-tier pharmacological breakdown with zero chemophobia, Malassezia fungal acne checks, and comedogenicity ratings.
Active Molecule Pairing & Conflict Checker ('Can I Use?')
Select any two skincare actives to instantly verify molecular compatibility. Inspect formulation pH requirements, enzymatic degradation hazards, alternating evening strategies, and modern myth-busters.
Pregnancy & Nursing Skincare Safety Checker
Quickly screen any skincare active or paste a full cosmetic formula to verify maternal contraindications. Discover evidence-based, OB-GYN approved alternatives for acne, pigment, and texture.
Fungal Acne (Malassezia) Ingredient Checker
Screens parsed INCI lists strictly for C11–C24 fatty acids, fatty acid esters (Isopropyl Myristate, Palmitates), Polysorbates (20/40/60/80), yeast ferments (Galactomyces), and plant oils that fuel Malassezia folliculitis.
Pore-Clogging & Comedogenic Ingredients Checker
Highlights ingredients rated 3–5 on the comedogenicity scale (Isopropyl Myristate, Coconut Oil, Cocoa Butter, Ethylhexyl Palmitate, Algae Extract) and intelligently weights them by position before or after the 1% INCI line.
Two-Product INCI Side-by-Side Diff & Layering Checker
Renders two INCI paste boxes side-by-side. Extracts the active molecules in both bottles, runs clinical conflict rules across them, infers which bottle has thinner viscosity (goes on first), and flags shared contact allergens.
Fragrance, Essential Oil & Contact Allergen Decoder
Screens ingredient lists specifically against the EU 26 fragrance allergen register (Linalool, Limonene, Geraniol, Citronellol), volatile essential oil terpenes, Methylisothiazolinone (MI/MCI), formaldehyde releasers, and drying alcohols.
Skincare & Sunscreen Pilling Compatibility Checker
Parses two or more INCI lists to detect film-forming polymers (Xanthan Gum, Carbomer, VP Copolymers), heavy silicones (Dimethicone, Cyclopentasiloxane), and mineral powders (Zinc Oxide, Silica) that ball up when layered without adequate dry-down.
AHA / BHA Free Acid Value (FAV) & Effective pH Calculator
Calculates bioavailable un-ionized free acid percentages using the Henderson-Hasselbalch equation and chemical pKa constants for Glycolic (3.83), Lactic (3.86), Mandelic (3.41), and Salicylic (2.97) acids. Proves why a 10% toner at pH 4.5 delivers less acid than a 7% toner at pH 3.5.
Retinoid Potency & Conversion Ladder Calculator
Map out enzymatic conversion steps to retinoic acid, relative RAR receptor binding potency, and a personalized 4-week cross-tapering schedule when stepping up from Retinol or Retinal to prescription Tretinoin or Adapalene.
Custom Skin Cycling & Retinoid Ramp-Up Calendar Generator
Configure Classic 4-Night Skin Cycling (Exfoliation → Retinoid → Recovery → Recovery), 8-Week Retinoid Ramp-Up, or Sensitive 5-Night Protocols. Export directly into Apple Calendar / Google Calendar (.ics) or print a bathroom mirror schedule.
Cumulative Active Overload & Niacinamide Stack Calculator
Calculate your total cumulative Niacinamide percentage across cleanser, toner, serum, and sunscreen. Reveals why four seemingly gentle products can silently sum to an irritating 16%–20% dosage that triggers erythema and barrier breakdown.
Clinical Sunscreen Dosage (2 mg/cm²) & UV Reapplication Calculator
Calculates the exact volumetric dosage (grams, milliliters, finger-lengths, and fractions of a teaspoon) required to achieve labeled SPF at 2 mg/cm². Projects how many days a 30ml or 50ml bottle should last and plots the non-linear SPF decay from under-application.
Skin Purging vs. Breakout Diagnostic Checker
5-step interactive triage to distinguish true cell-turnover purging (Retinoids, AHA, BHA, Azelaic) from product-induced comedogenic breakouts, irritant contact dermatitis, or fungal folliculitis. Outputs an instant verdict and protocol.
Damaged Skin Barrier Triage & Recovery Time Estimator
Evaluates classic stratum corneum barrier failure symptoms: stinging upon applying plain water, shiny-tight 'plastic wrap' skin texture, sudden persistent redness, and active intolerance. Computes Damage Grade (1, 2, or 3) and a customized recovery timeline.
Dehydrated Oily Skin vs. True Dry Skin Diagnostic Tool
Accurately separates temporary water deficiency (elevated Transepidermal Water Loss with midday T-zone oiliness) from constitutional alipidic dry skin (sebum-deficient). Recommends the exact humectant-to-occlusive balance your skin requires.
Instant Skincare Application Order & Viscosity Sorter
A rapid, 1-click check-off tool where you pick the vehicle formats in your routine (Micellar Water, Low-pH Toner, Water Serum, Emulsion, Gel-Cream, Facial Oil, Sunscreen). Generates the optimal Tier 0 to Tier 6 application order with thermodynamic wait times.
Clinical Reference Libraries
Browse our peer-reviewed knowledge bases covering individual active profiles, skin barrier physiology, and allergen registries.
Viscosity Application Order Blueprint
Complete visual layering guide from micellar waters to heavy petrolatum occlusives.
Skincare Actives Encyclopedia
Pharmacological monographs covering mechanisms, pH curves, and carrier penetration for 58 active families.
Contact Sensitivity & Allergen Directory
11 contact allergen profiles from oxidized fragrance terpenes to simple short-chain drying alcohols.
Full Active Pairings Library
Browse 20+ dedicated deep-dive pairing pages with research citations and clinical regimens.
Obstetric Ingredients Index
Detailed monographs for maternal skincare ingredient safety during pregnancy and lactation.
Clinical Skincare Guides
Long-form editorial masterclasses on barrier repair, skin cycling, and active titration.
Take the Clinical Laboratory to Your Bathroom Shelf
While our web tools offer instant formula checks, the Miko iOS app scans physical product barcodes, tracks remaining volume, monitors batch expiry dates, and alerts you before active clashes ever touch your skin. Zero advertisements. Zero sponsored brand bias.