There are very few scar treatments that are backed by science.
The following applies to all scars (not just surgical), skin types and all ages.
Let me first start by mentioning what to AVOID. Vitamin E should be avoided as a scar treatment as it causes contact dermatitis (skin allergy) in 33% of users and it does nothing for scar healing. Multiple studies have also shown that Mederma (onion extract) does not improve scars either.
Scientific studies have shown that the following DO improve
scar healing and the appearance of scars:
1) Vitamin C
2) Silicone
Both vitamin C and silicone aid healthy collagen production by the skin which is essential for optimal scar healing.
Silicone scar products also decrease the production of abnormal collagen that can cause thick, raised scars (which can lead to hypertrophic and keloid scars). Vitamin C also lightens the dark pigment often seen with scarring.
When choosing a
vitamin C scar treatment ensure that it contains a "stable" form C. Most forms of vitamin C used in skin care products are unstable and quickly turn brown after the container is opened. This is a sign that the vitamin C has become oxidized and therefore no longer works.
Products that are brown to begin with should probably be avoided as many manufacturers color the cream brown so that users cannot tell when the cream becomes oxidized. I would recommend using
scar treatments that specifically address this vit C stability issue (the ones that do usually mention it on the packaging and are not brown).
Your
scar treatment of choice should be used as soon as initial scar healing has occurred and you can comfortably apply the scar treatment/ scar cream without much discomfort. Continue using the scar therapy until you no longer see any improvement in the appearance of the scar. This can take 6 - 24 months.