Cycle of pigmentation (how does it happen?)
Stage 1- Before sun exposure: Melanocytes are located in the bottom layer of the epidermis.
Stage 2- During sun exposure/ hormonal changes/ trauma such as acne etc: Melanocytes are activated by an enzyme called tyrosinase.
Stage 3- Right after the trauma: The enzyme tyrosinase starts its work to produce melanin.
Stage 4- During melanin synthesis: Tyrosinase goes on a rage to produce more melanin.
Stage 5- After melanin synthesis: Melanin spreads itself through the area to protect the skin from the trauma.
The cycle of pigmentation (what happens?)
Stage 1- Before sun exposure
Stage 2- During sun exposure/ hormonal changes/ trauma such as acne etc: UV light/ hormonal changes cause internal change to trigger the melanin synthesis.
Stage 3- Right after the trauma: Slight inflammation, redness, or burning.
Stage 4- During melanin synthesis: occurrence of the early signs of tanning, dark marks, etc
Stage 5- After melanin synthesis: Spread to become stubborn melasma, acne marks, freckles etc
☀️ Melanin is a good pigment to protect the skin from trauma but results un uneven dark spots & tanning on the skin.