The concern
What do pigmentation and uneven tone mean?
Pigmentation means that some areas of skin contain more or less colour than the surrounding skin. It can appear as freckles, sun spots, post-acne marks or larger patches such as melasma. Different pigment patterns can look similar, but they need different care. A doctor first identifies the likely cause, pigment depth and skin type.
Common causes
What can cause pigmentation and uneven tone?
Sun and visible light
Light exposure can make pigment-producing cells more active. It can create new marks and make an existing condition such as melasma more visible.
Inflammation or injury
Acne, eczema, irritation, burns and other skin injuries can leave a dark mark after the skin heals. This is called post-inflammatory hyperpigmentation.
Hormonal change
Pregnancy, some contraceptives and other hormonal changes can trigger or worsen melasma in some people.
Skin tone and genetics
Inherited features affect how the skin makes pigment and how strongly it responds to inflammation and light.
Medicines and skin products
Some medicines increase light sensitivity. An irritating skin or hair product can also start inflammation that leaves a dark mark.
A measured starting point
Start with a 3D skin test
For visible facial skin concerns, the Janus PRO scan gives your doctor objective images and measurements before a treatment plan is made.
It photographs the face with standard, cross-polarised, parallel-polarised and UV light. The system maps visible features such as pores, pigmentation, redness, texture and sebum. Your doctor reviews this information with your medical history and examination to make a more precise facial-skin recommendation. The scan supports the decision; it does not diagnose a condition or select a treatment automatically.



