How to remove dark on elbows?

The elbows can look darker when thick, dry skin catches light differently from smoother skin. Repeated pressure, friction, a previous rash, or an irritating product may add pigment. If darkening follows inflammation, it may be [Post-Inflammatory Hyperpigmentation](/conditions/post-inflammatory-hyperpigmentation/). The appearance should be assessed rather than treated as a diagnosis from a photograph or description.

Apply a bland moisturiser after washing and avoid leaning on rough surfaces. Do not use lemon juice, abrasive pumice, or mixed bleaching products. Protect elbows from sunlight when uncovered. Once the cause is clear, a dermatologist may discuss [Topical Retinoids](/treatments/medical-dermatology/topical-retinoids/) or a professionally selected [Chemical Peel](/treatments/aesthetic-procedures/chemical-peel/). Introduce one active product at a time and stop if burning, swelling, or marked peeling occurs.

Have the area examined if it is rapidly changing, very itchy, painful, cracked, bleeding, crusted, or associated with thickening elsewhere. Seek prompt attention for pus, spreading redness, warmth, swelling, fever, or a sore that does not heal. Treatment works more safely when an active rash is controlled first.

Is this mainly dryness and friction, or is there an underlying skin condition? Which ingredient suits my complexion? How often should I apply it? Would a peel be appropriate, and what skin reactions should prompt me to stop?