Know before your skin feels it.
Weather fronts, building properties, and seasonal shifts quietly change the moisture in your home's air — often days before your skin shows it. Dermidia provides the tools to track those changes so your skincare routine stays one step ahead, in every season.
The path forward
Dermidia Guide is coming soon. No payment details are collected for launch interest, and your email is not shared with 3rd parties.
Why would I need this?
Dry-skin weather often arrives before your routine changes.
You may notice the tightness later, but the environmental setup starts earlier: outdoor air gets drier, buildings exchange that air, heating lowers indoor relative humidity, and skin loses water more readily.
Outdoor air
Cold or dry weather
Seasonal weather controls how much water vapor enters a home.
Building properties
Humidity changes
Indoor humidity changes in response to vapor buffering by building materials and heating.
Water vapor potential
Stronger drying gradient
The driving force for moisture loss becomes stronger around the skin.
Dry Skin Index
0-10 DSI scale
Dermidia translates that physics into a practical skin care signal.
Skin Care
Leave-on products
Lotions
Leave-on products are an essential part of enhancing skin hydration.
Indoor humidity
Room humidifiers
When DSI is elevated, humidification can help reduce dermal drying stresses.
View a special simulation of the indoor drying stresses where you live
The simulator reconstructs the Dry Skin Index (DSI) at a residence to answer the question: how should skin care change seasonally to respond to indoor dryness? Dermidia Guide will answer the next one: what should I remember as the pattern changes?
Step 1
Seasonal DSI Simulator
Use the public simulator to summarize your location's seasonal DSI pattern, including when indoor drying stress tends to peak and ease.
- Monthly average and peak DSI
- Seasonal drying-stress window
- 7-day DSI forecast for current context
Step 2
Dermidia Guide
Dermidia Guide is coming soon with a weekly email update, plus a personal Dashboard you can open anytime to check current drying conditions and trends for your location.
- Launch-interest email signup
- Personal Dashboard for DSI trends
- Location and home-type context
Still not sure the signal matters?
Compare Boston and Miami in winter. The contrast makes the DSI tangible: location can change the indoor drying burden, which changes how useful a weekly care cue can be.
Dermidia Guide
Get alerted when Dermidia Guide is ready
Once the simulator makes the pattern clear, Guide will be the practical next step: an always-available dashboard and weekly outlook for your location and home type.
No payment details are collected for launch interest and your email is not shared with 3rd parties.