Product preview
Your personal guide to environmental skin care.
Dermidia Guide provides a snapshot of indoor drying stresses based on your building type and local meteorology. A weekly email forecasts the week ahead so your skin care practices can match indoor conditions. As a bonus, Dermidia Compare lets you see how the DSI varies between your location and places you visit. Guide access is opening soon as Dermidia Guide completes beta testing; join the launch list now to receive four free Sunday guides when access opens.
No payment details are collected for the launch list.

Plan skin care before indoor drying stress shows up on your skin.
A dashboard, a weekly forecast, and a place-to-place comparison.
These sample views show how Guide turns the DSI into three subscriber workflows: check the current modeled signal, plan the next week, and preview how a destination may change your care load.
Feature 1
Dashboard: current DSI signal
A same-day view of modeled indoor drying stress, current tier, and short-term trend for your registered profile.
7-Day Dry Skin Index Forecast
Registered location
Test house
Today
Thursday, June 4
Skin Care Action Levels
Low Risk
DSI < 4
First Alert
DSI 4-5
Special Care
DSI 5-6
Enhanced Care
DSI 6+
Use the dashboard anytime to check whether today is a maintenance day, a light-prevention day, or a step-up care day.
Feature 2
Weekly Guide email forecast
A Sunday planning cue that highlights the week's expected DSI pattern and the skin care steps most likely to matter.
Weekly Guide email forecast
Sunday DSI update
First Alert conditions cover much of the week.
Most days sit in First Alert. Use the base wash routine, then add light lotion after bathing where skin feels tight or rough.
What the Dry Skin Index means
The Dry Skin Index (DSI) estimates the magnitude of indoor drying stresses on skin due to changes in temperature and humidity. The scale runs from 0 to 10: lower numbers mean easier skin care, and higher numbers mean more drying stress.
Week avg
4.4
range 3.8-5.1
Peak day
Monday
DSI 4.8
Above 4 DSI
6/7
6 days
7-day Dry Skin Index (DSI) forecast
Simulation-based outlook
Sun
4.7
4.1-5.4
Mon
4.8
4.2-5.5
Tue
4.6
4.0-5.3
Wed
4.5
3.9-5.2
Thu
4.2
3.7-4.8
Fri
4.0
3.5-4.6
Sat
3.9
3.4-4.5
Low Risk
DSI < 4
First Alert
DSI 4-5
Special Care
DSI 5-6
Enhanced Care
DSI 6+
6 of 7 days are above 4 DSI, mostly in First Alert.
What to do this week
- Keep moisturizing body wash daily.
- After bathing, apply a leave-on moisturizer to areas that feel tight, rough, or itchy.
- If skin is already symptomatic, repeat on those areas in the evening.
Subscriber bonus
Dermidia Compare: place-to-place DSI planning
A travel and relocation lens for comparing your Guide location with a destination before the environment changes.
Example comparison
Boston winter vs. Miami stay
Compare estimates how a location change affects the modeled indoor DSI, then translates the difference into care-load language a subscriber can use before packing or changing routine.
Average change
-2.6
lower January DSI in Miami
DSI 6+ days
21
fewer enhanced-care days
Use case
Trips
moves, winter stays, and return travel
January relief profile
This lane shows where the simulated indoor DSI sits on the 0-10 scale for Boston versus Miami.
January
-2.6 DSI
21 fewer days at DSI 6+
Care load
Boston
Enhanced Care
Miami
Low Risk
What Dermidia Guide will include
Guide turns one environmental signal into practical prompts for home routines, weekly planning, and travel decisions.
Always-available dashboard
Check the modeled indoor DSI snapshot for your saved location, building type, and current weather pattern.
Weekly email update
Get a Sunday forecast that turns the week ahead into practical skin care timing.
Care strategy by DSI level
Match daily routines to DSI tiers, from maintenance care to stronger moisturizer and humidifier support.
Dermidia Compare utility
See how the DSI differs between home and places you visit, including winter stays, business trips, and moves.
Location and home type
Tune the simulated indoor drying signal to the climate and home context that shape your exposure.
Seasonal context
Recognize whether a high-DSI week is a short bump or part of the larger seasonal pattern.