I found information on skin brightening products from different sources, including product details, positive and negative aspects, and ingredients or materials. However, the information is not specific to products available at Clicks. Here is a summary of the information I found:

Ingredients or materials

• Kojic acid: a natural lightening and brightening skincare active that works by making an enzyme necessary for melanin production unavailable, which is the pigment that colors the skin.
• Vitamin C: a natural skin lightening active that inhibits the production of melanin.
• Alpha-arbutin: a compound found in the leaves of the bearberry plant that inhibits skins tyrosinase enzymes.
• Niacinamide: a potent antioxidant that can lighten skin.
• Hydroquinone: the most widely used ingredient in skin lighteners sold in the U.S. that reduces the amount of melanin in the skin where it is applied.
• Mercury: a harmful ingredient that is banned in the U.S. but may still be present in skin lighteners produced outside the U.S. .

Positive aspects

• Skin lightening products can reduce the amount of melanin in the skin, which can help fade dark spots and even out skin tone.
• Some natural ingredients, such as kojic acid, vitamin C, and alpha-arbutin, can be effective in lightening the skin.

Negative aspects

• Some skin lightening products may contain harmful ingredients, such as mercury and hydroquinone, which can cause skin irritation or allergic reactions.
• Hydroquinone has been linked to cancer and is banned in some countries.

Overall, it is important to be cautious when using skin brightening products and to check the ingredients list for harmful substances. It is also recommended to talk to a doctor or dermatologist before using a skin lightener and to follow specific instructions for the product.