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Liminal
See what actually works
Track your skincare routine and see what's actually working. Whether you're managing acne, experimenting with retinoids, or just trying to figure out which products earn their spot on your shelf - Liminal helps you follow routines via daily checkups, and discover the patterns that show you what's making a difference.
I've been a long-term skincare enthusiast (initially because due to adult acne). I wanted something simple and private to track my progress, but nothing out there felt quite right. Along the way I discovered retinoids - one of the few ingredients that actually does something measurable for your skin. The problem is they take months to show results, and without tracking, it's pretty hard to know if they're working.
I built Liminal because of my own experience and the experience of so many people overwhelmed by products and routines with no way to know what's actually helping. My goal is to replace guessing with clarity - track what you apply, see how your skin responds, and let the patterns speak for themselves.
Every day (or based on your routine) you do a quick checkup: snap a photo, rate your skin across dimensions like irritation, dryness, and acne, and log which products you applied. Over time, those small data points build a real picture of what's working and what isn’t!
The app is built for iOS with a privacy-first approach - all data stays on your device with no sign-up required. It syncs with Apple Health so your skin trends live alongside your other health data, and iCloud sync is coming soon so your photos, logs, and routines follow you across devices. You can also export your data in a pdf format for sharing with for example a healthcare professional.
Your feedback is very much appreciated!
About Liminal on Product Hunt
“See what actually works”
Liminal was submitted on Product Hunt and earned 3 upvotes and 1 comments, placing #141 on the daily leaderboard. Track your skincare routine and see what's actually working. Whether you're managing acne, experimenting with retinoids, or just trying to figure out which products earn their spot on your shelf - Liminal helps you follow routines via daily checkups, and discover the patterns that show you what's making a difference.
On the analytics side, Liminal competes within Health & Fitness, Beauty and Lifestyle — topics that collectively have 92.1k followers on Product Hunt. The dashboard above tracks how Liminal performed against the three products that launched closest to it on the same day.
Who hunted Liminal?
Liminal was hunted by Adrian Sergheev. A “hunter” on Product Hunt is the community member who submits a product to the platform — uploading the images, the link, and tagging the makers behind it. Hunters typically write the first comment explaining why a product is worth attention, and their followers are notified the moment they post. Around 79% of featured launches on Product Hunt are self-hunted by their makers, but a well-known hunter still acts as a signal of quality to the rest of the community. See the full all-time top hunters leaderboard to discover who is shaping the Product Hunt ecosystem.
For a complete overview of Liminal including community comment highlights and product details, visit the product overview.
Adrian Sergheev
Hi Product Hunt!
I've been a long-term skincare enthusiast (initially because due to adult acne). I wanted something simple and private to track my progress, but nothing out there felt quite right. Along the way I discovered retinoids - one of the few ingredients that actually does something measurable for your skin. The problem is they take months to show results, and without tracking, it's pretty hard to know if they're working.
I built Liminal because of my own experience and the experience of so many people overwhelmed by products and routines with no way to know what's actually helping. My goal is to replace guessing with clarity - track what you apply, see how your skin responds, and let the patterns speak for themselves.
Every day (or based on your routine) you do a quick checkup: snap a photo, rate your skin across dimensions like irritation, dryness, and acne, and log which products you applied. Over time, those small data points build a real picture of what's working and what isn’t!
The app is built for iOS with a privacy-first approach - all data stays on your device with no sign-up required. It syncs with Apple Health so your skin trends live alongside your other health data, and iCloud sync is coming soon so your photos, logs, and routines follow you across devices. You can also export your data in a pdf format for sharing with for example a healthcare professional.
Your feedback is very much appreciated!