not sure yet.
i go check which supplier offer best price.
shd be around $1.50 per pc.
this one

The main structural component of the lower layer of the skin
(Dermis) is a protein called collagen. Everyday your skin is
exposed to environmental elements such as sunlight and air
pollution. These elements cause free radicals to form in the skin,
which attacks the collagen layer. This process prematurely ages and
damages skin, resulting in fine lines, wrinkles, loss of elasticity
and hyper-pigmentation.
As aging occurs after 25 years of age, there will be a loss of
collagen and cause less firmness to body tissues. This process
eventually leads to wrinkles. Collagen will stimulate skin cells to
produce collagen and can partly reverse these aging
processes.
All In One Collagen Mask contains Hydro Molecules, Collagen,
Hyaluronic Acid, Aloe Barbadensis Leaf Juice, Enzyme, Vitamins A, C
and E, that helps to replenish the loss of moisture, giving you a
suppler, firmer and most importantly fairer, younger looking
skin.
Effects:
1.To whiten and re-hydrate your skin
2.Prevent wrinkles by increasing skin elasticity
3.To repair and re-conceal wounds and sunken scars
4.To facilitates the recovery of skin metabolism
5.Modulate and stabilizes skin pH
Suitable for all skin types.