Age spots are common pigment changes on sun-exposed skin. However, not every new or dark spot is a harmless age spot. Establish the diagnosis before cosmetic treatment, especially if a spot is changing.
What evidence is there for DMSO?
Solvent action or enhanced skin penetration does not establish that DMSO safely and effectively lightens age spots. Such a benefit cannot be inferred from experience with other skin applications or a before-and-after photograph. A dermatological assessment identifies established treatment options according to the findings and skin type.
Avoid irritation and homemade mixtures
DMSO can irritate the skin and affect the absorption of other substances through it. This is not a reliable way to make a homemade lightening mixture safer or more effective. Do not apply technical solvents or homemade DMSO mixtures to undiagnosed pigmented areas; protect eyes and mucous membranes.
When a spot should be assessed
Have new, growing, bleeding or changing spots assessed promptly by a dermatologist, including changes in shape or colour. A spot that looks different from the others also deserves attention. Do not obscure the finding or postpone an examination by treating it yourself.
Sun protection and appropriate treatment
Shade, protective clothing and suitable sunscreen help limit further UV exposure. If lightening is desired after examination, discuss the benefits, risks and possible pigment changes of different procedures with the dermatologist. Not every method suits every skin type.
Frequently asked questions
Does a photograph prove that DMSO works?
No. Lighting, the natural course and other measures can change the appearance.
Is every brown spot an age spot?
No. If in doubt or if it changes, have the diagnosis clarified.
Does sun protection replace assessment of a suspicious spot?
No. They serve different purposes.
Further reading
Is DMSO dangerous? Risks and safety limits