Quantifying dyspigmentation in facial skin ageing: an explorative study

Abstract

We demonstrated age-related changes in the facial colour and dyspigmentation of fair-skinned Caucasian females. An increase in dyspigmentation was found by clinical scoring and the RBX(®) -Brown transformation-based pigmentation indices. The validity of hyper- and hypopigmentation indices and overall pigmentation intensity was supported. The RBX(®) transformation-based pigmentation indices might be applied in future studies to complement or substitute clinical evaluation.

Effectiveness of a combination of anti-pigmentary products in facial post-inflammatory hyperpigmentation

“…22 We used the Mexameter (® Courage+Khazaka Electronic GmbH, Mobile data collector DC 3000, Germany) to assess the hyperpigmented lesions. 20,[23][24][25][26][27] The two main pigments (melanin and haemoglobin) absorb light at different spectrums. Haemoglobin absorbs light in the green area of the spectrum while melanin is known to absorb light of all wavelengths.…”

Seasonally‐induced alterations of some facial signs in Caucasian women and their changes induced by a daily application of a photo‐protective product

“…With exhaustive and global mapping of the 14 signs recorded at both sessions (i.e. winter, summer) four major clinical clusters were covered the following: wrinkles and skin texture (surface irregularities), pigmentation disorders , ptosis and sagging, and vascular disorders.…”

“…With exhaustive and global mapping of the 14 signs recorded at both sessions (i.e. winter, summer) four major clinical clusters were covered the following: wrinkles and skin texture (surface irregularities), pigmentation disorders [22,23], ptosis and sagging, and vascular disorders. The 12 experts assessed these 14 signs in all photographs that were resized and reframed under standard operational procedures with editing software (Photoshop version 10â).…”

Development and clinical validation of a novel photography‐based skin erythema evaluation system: a comparison with the calculated consensus of dermatologists

“…Various therapeutic devices, medicines and cosmetics have been developed to improve these dermatological conditions . These modalities need to be validated objectively for dermatologists, patients and regulatory agencies . Various studies are in progress on both improvement of skin conditions and their objective measurement .…”