
Tone means color variations in skin.
Tonal issues can have many root causes:
Hyper pigmentation (dark spots on the skin).
- Sun damage, which is damage to DNA, can be a cause.
- Conditions such as melasma (symmetrical dark map-like patches on the face) can be present.
- Natural genetic melanin banding patterns can be a significant source of tonal irregularities in skin.
Irritation responses in skin can cause intermittent redness.
- A histamine reaction can take place in the skin as a result from the environment or a topical product application.
- More complex issues such as rosacea which can have many contributing factors which need careful diagnosis.
- Excessive bacterial presence on skin can lead to site-specific red patches on skin.
All of the above can be managed effectively with a variety of techniques.