Your skin reaches its ”peak” when you’re about 20
years old. That’s when the sebum-moisture balance,
combined with rapid cell turnover (14 to 18 days),
gives your skin the best moisture barrier capabilities it
will ever have! In your 30s, your skin begins to gradually
lose some tone and texture, resulting in a duller,
dryer appearance and the first signs of fine, dry lines
appear. Underlying these changes are slower skin
renewal times and reduced ability to retain moisture.
In your 40s, your skin renewal time may have nearly
doubled compared to your peak at age 20. And you
can expect a skin renewal time of longer than a month
when you reach your 50s. A longer renewal time means
two things: 1) old skin cells remain on the surface
longer, looking dry and masking natural skin color and
radiance, and 2) of greater importance, the slower
renewal time indicates skin is not functioning at its
best.