OLAY's product range is very comprehensive, among many facial essence products, the small white bottle is the watery white light sculpting essence as its star product, and it is also the sales champion among OLAY whitening products.
 
Niacinamide, the staple ingredient of Olay, runs through the entire range of Olay's serums, which blocks the transfer of melanosomes to keratinocytes, thereby reducing melanin synthesis. OLAY has more than 20 years of experience in nicotinamide product development, and its technology is relatively mature. The small white bottle contains niacinamide with a purity of 99%, which is its core whitening ingredient. However, because the high concentration of niacinamide is irritating to the skin, the amount of niacinamide added to skin care products is not high, and the whitening effect is limited. It should be reminded that some skin is intolerant to niacinamide and will have symptoms such as stinging, peeling, and redness, so it is recommended to conduct a skin test in advance.
 
In order to enhance the whitening effect, the small white bottle also adds two whitening agents, ascorbyl glucoside gold and Sepiwhire, i.e. undecynyl phenylalanine, the latter can affect the binding of a-MSH to melanin-producing factors, thereby blocking the formation of melanin. However, skin darkening is a complex mechanism that includes many factors, and the effectiveness of skin care products is limited, and sun protection is still the most important way to prevent darkening.
 
The emulsion-like essence has a refreshing texture and acceptable fluidity, while the strong fragrance is often criticized by users. The small white bottle has a simple appearance, the bottle is silvery-white, with a dropper design, and the essence can be absorbed by rotating the cap, and then it can flow out by pressing, making it easier to control the dosage. However, when the essence is exhausted, the essence at the bottom of the bottle is not easy to suck out and needs to be poured.
 
The small white bottle uses niacinamide as the core whitening ingredient like the SK-II small bulb, and the former is only priced at 229 yuan for 30ml, which is much lower than the latter. Therefore, the small white bottle is also known as an affordable alternative to the small bulb, but there is still a certain gap between the two. The small bulb contains the patented formula pitera of SK-II, while the small white bottle only has a regular moisturizer in addition to the whitening ingredients, so the skin care effect of the small bulb is more comprehensive. Like other SK-II products, the small bulb is suitable for oily skin, while the small white bottle is suitable for a wide range of skin types. In terms of texture and skin feel, small bulbs are better than small white bottles, with better ductility and a more refreshing texture.
 
The sister product of the Little White Bottle, the Blemish Flask ProX, is also a classic of olay, the core ingredient of the two is the same, and the main effect is different, the former is to prevent darkening, and the latter is to lighten dark spots. ProX is characterized by the addition of a complex of niacinamide sugar kelp extract to reduce melanin production, reduce pigmentation caused by inflammatory factors and glycation, and make it more targeted for pigmentation problems. At the same time, the texture of proX is more viscous, which is more suitable for use in the dry season.