Philtrum Length Detector
Secure SaaS Platform
How the Philtrum Length Detector Works
From upload to result in under two seconds, no calipers.
Snap a selfie or upload an existing photo with a neutral expression and even lighting.
Facial AestheticsWhy Philtrum Length Matters
Why Philtrum Length Matters
Reads facial age: A shorter philtrum tends to read younger and more balanced, but it varies from people's perspectives.
Guides aesthetic consults: Clinics use philtrum measurement to plan lip lifts, filler, and other lower-face procedures.
Feeds proportion scoring: Philtrum-to-chin ratio is one of the standard inputs in face ratio analysis.
Personalizes recommendations: Brands can tailor lip product or contouring suggestions based on a user's measured proportions.
Measurement ScienceClinically-Grounded Measurement
Clinically-Grounded Measurement
Standard landmarks: Measures the same philtrun length distance used in big data and literature, not a rough visual estimate.
70+ attributes analysis: Built on Perfect Corp's facial analysis engine, trained on 10,000+ images.
Consistent results: Removes the variability of manual ruler or caliper measurement between sessions.
Built for scale: The same detection engine already powers Perfect Corp's Face Analyzer used by 800+ brand partners.
For Developers & BrandsBring It Into Your Own App or Website
Bring It Into Your Own App or Website
API-ready: Add philtrum length and proportion detection to your app or website via the Face Analyzer API.
Fits existing flows: Pairs naturally with virtual try-on, skincare consults, and aesthetic simulation tools already on the platform.
Fast integration: Live in production with only a few API calls.
White-label friendly: Results and UI can be styled to match your brand.
Privacy FirstYour Photo Stays Yours
Your Photo Stays Yours
100% Privacy Protection: Photos are processed for analysis only and are not retained afterward.
No sign-up needed: Try the detector instantly, no account required.
Instant results: Full analysis returns in about two seconds.
Proven at scale: Perfect Corp's facial analysis tools were used over 1.7M times in 2025.
Facial HarmonySee How You Compare to the Golden Ratio
See How You Compare to the Golden Ratio
Beyond one number: Philtrum length is shown alongside 10+ other facial ratios, not in isolation.
Golden ratio benchmarking: Compares facial proportions to the 1:1.618 aesthetic standard.
Shareable result: Clear, visual output that's easy to screenshot and share.
One scan, full picture: Face shape, symmetry, and proportion data all come from the same photo.
Philtrum Length Detector Frequently Asked Questions
What is philtrum length?
Philtrum length is the vertical distance from the base of the nose (subnasale) to the center of the upper lip's vermilion border (labrale superius). It's a standard facial proportion measurement used in aesthetics and clinical assessment.
What is considered an average philtrum length?
Clinical literature places the average mid-philtral height at roughly 20mm for adult women and 22mm for adult men
Can beauty brands integrate philtrum length detection into their own app or website?
Yes. The feature is available through the Face Analyzer API
Is the philtrum length detector free to use?
Yes. No sign-ups.
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