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3. Stretch Marks
At home: A prescription retinoid or an OTC retinol used regularly can improve matters appreciably, says Annie Chiu, MD, a dermatologist in Redondo Beach, California. It's most effective when stretch marks are new and still red; mature stretch marks that have turned white are more resistant to treatment. To conceal white ones, use self-tanner.
At-home essential: Murad Firm and Tone Serum ($60;
murad.com)
In office: Fractional Nonablative Laser
How it works: Heat is delivered deep into the dermis, stimulating collagen production and plumping the skin so it appears smoother, says Chiu.
Number of treatments: three to four (a month apart)
Average cost: $500 to $1,000 per treatment
In office: Radiofrequency
How it works: Radiofrequency energy heats collagen below the skin's surface, causing it to contract, so skin eventually tightens, says Chiu.
Number of treatments: two to four
Average cost: $500 to $1,000 per treatment
In office: Pulsed Dye Laser
How it works: Green or yellow light neutralizes the redness of new stretch marks, says Chiu.
Number of treatments: three (a month apart)
Average cost: $500 to $1,000 per treatment
