Since we are talking about Stretchmark creams.. Here's something I found online about stretchmarks...
Stretch Marks
Stretch marks are often mistakenly blamed on the rapid stretching of the skin associated with such life events as pregnancy and growth spurts, but in actuality this is untrue. Stretch marks (also referred to as striae distensae) are the result of an increased level of circulating glucocorticoids throughout the bloodstream. This hormone, secreted by the adrenal glands (they lie on top of the kidneys), becomes elevated during pregnancy, adolescence, with obesity, weight lifting and Cushings disease.
All the stretching in the world will not result in a stretch mark so long as there is support within the dermis. Stretching may determine where the stretch marks will appear and also plays a role in which direction they run. But stretching alone is not the cause of a stretch mark. Perhaps the term stretch mark is really a misnomer!
Those glucocorticoids responsible for the development of stretch marks affect the dermis by preventing the fibroblasts from forming collagen and elastin fibers, necessary to keep rapidly growing skin taut. This creates a lack of supportive material, as the skin is stretched and leads to dermal tearing. The epidermal cells are also affected, so the epidermis becomes thin and flattened, allowing for more visibility of the defects below.
If you were to look at a stretch mark under the microscope, youd see that the dermis is thinner than normal. The collagen fibers have been pulled apart from each other, and the elastic fibers are broken and lie clumped along the edges of the stretch mark. They are nowhere to be found within the heart of the tear. Remember a healthy dermis is literally a chain linked fence, preventing sagging and crepiness seen later in life with wrinkles. If tears develop, the skin will show it.
As the stretch mark ages and turns white, this is the regeneration phase. The collagen bundles mix with some abnormally thin elastic fibers but are unable to fully realign themselves in a proper manner. The elastic fibers continue to be absent deeper in the dermis. Treatment is aimed at trying to normalize this cutaneous disarray.
Medically known as striae rubra, these newly forming, usually reddish, raised stretch marks are your best bet of really making an impact with treatment. Fortunately, this is the time during and shortly after pregnancy that you have the ability to make an impact upon the ultimate demise of your stretch marks. Your options include:
Mederma applied 3-4 times daily for an estimated 6-12 months.
Cellex-C High Potency Serum applied daily for 6-12 months.
Tretinoin is out until completing breast-feeding. If older white stretch marks exist from prior pregnancy or simply life, MD Formulations - Hand & Body Creme can also be used.
The concept behind treating stretch marks early on is that you are limiting the amount of damage that is caused. Cellex-C has already been documented to help stimulate fibroblasts to produce collagen and elastin fibers. These are essential in helping prevent the formation of stretch marks. And while Mederma has shown good results in helping treat red, raised stretch marks, we still do not really understand why. It is safe to use while pregnant and nursing and certainly as natural as one can get. The active ingredient is nothing but onion juice extract.
http://www.dermadoctor.com/pages/newsletter82.asp?WID=%7BE1B8F577-CB42-436A-82BB-7176FF13CBA6%7D
i will wait for her call lor. So how leh... what do u girls say? 
