PS08 Skin Colorimeter — Product Summary

The PS08 is a research-grade skin colorimeter developed by 3nh, tailored for cosmetic R&D, medical-aesthetic effect assessment and artificial skin validation. Built on D/8 integrating-sphere optical configuration with planar grating spectroscopy, it complies with international standards including CIE No.15, GB/T 3978, ISO7724-1 and ASTM E1164, supporting simultaneous SCI / SCE measurement.

With merely one skin-contact test, the device outputs four core sets of skin-related metrics: Melanin Index (MI), Erythema Index (EI), ITA° Individual Typology Angle and CIE Lab* values.

• Melanin Index (MI): Evaluate whitening product performance, monitor pigment spot variation and track post-sun repair outcomes.
• Erythema Index (EI): Quantify skin sensitivity, track post-aesthetic-treatment recovery and test anti-irritant formulations.
• ITA° Individual Typology Angle: Objectively grade skin tone to eliminate subjective visual judgement.
• *CIE LabColor Coordinates**: Adopt globally-accepted color notation to record skin colour precisely.

It supports multiple colour spaces such as CIE LAB, XYZ, Yxy, LCh as well as ΔE*ab colour-difference calculation. Measurement data can be logged by body sites (face, neck, chest, arms etc.), stored locally or exported to generate trend curves for longitudinal comparison. Local-only data storage protects user privacy.

Free from ambient-light interference, the PS08 delivers consistent, traceable and comparable measurement results over time. It features a Φ40 mm integrating sphere, 400-700 nm spectral range, Φ8 mm measuring aperture, 3.5-inch TFT capacitive touch screen, USB & Bluetooth connectivity. Up to 1 000 reference records and 20 000 sample records can be saved onboard, with extended storage available via the MOBCCS APP.

Main application scenarios cover daily skin tracking, cosmetic efficacy verification, beauty salon pre-/post-treatment evaluation, content creation for skincare influencers, and lab-scale cosmetic formulation screening. Optional accessories include powder test cell, Bluetooth micro-printer and USB micro-printer.

Key performance highlights

• Short measuring cycle: approx. 1.5 s for single mode; approx. 3.2 s for concurrent SCI/SCE test
• Excellent repeatability: ΔEab ≤0.04; inter-instrument agreement: ΔEab ≤0.35
• Light-weight at ~460 g, dimension: 81 × 71 × 214 mm
• Rechargeable lithium-ion battery supports up to 6 000 measurements within 8 hours
• Multi-language support: Simplified Chinese, Traditional Chinese and English