The world's first infant formula specifically for non-breastfed babies is from Wyeth. Six of the 10 revolutionary innovations in the field of infant formula were initiated by Wyeth for the first time, which shows the strength of its scientific research. Scientific nutritional formula has always been Wyeth's strength, as early as 1961, it launched the first whey protein-to-casein ratio of 60:40 formula, named it S-26, a change from the casein-based formula design concept at the time, to make it closer to the composition of breast milk, and most of the formulas on the market today follow this design.
 
Wyeth was also a best-selling brand in the U.S. market in its early years, but later withdrew from the U.S. market. In 2012, Nestle, the world's largest dairy giant, acquired Pfizer's Wyeth milk powder for $11.85 billion, and has since gained momentum in the Chinese market. In 2015, Wyeth's revenue in Chinese mainland exceeded 10 billion yuan, and Qifu, as Wyeth's highest-end series in the Chinese market, accounted for 6 billion yuan. In the first eight months of 2016, Wyeth occupied the first place in the domestic milk powder market with a market share of 14.5%.
 
Judging from a period of milk powder, 900g of Wyeth Qifu imported from Ireland uses Irish milk source, adds OPO structural lipids, lutein and other fortifiers, mainly supplied to the Chinese market, with a price of 408 yuan, which is cost-effective, and is not recommended here. In contrast, the platinum series does not add OPO structural fat, the milk source comes from the Swiss Alpine pasture, and the import price of 800g Swiss original tank is 308 yuan, although the milk source is not as high-quality as Qifu, but the cost performance is relatively higher. The 900g gold Aierle S-26 produced in Suzhou, China is only 258 yuan, the nutritional ratio is close to that of Bozhen, a section of milk powder is suitable for 0-6 months of babies, a section of Qifu and Bo Zhen are suitable for 0-12 months of babies, in these three versions of Wyeth, the DHA content is relatively high, and the ratio of ARA to DHA is 1:1. In the Hong Kong version of Wyeth, all three series of sections are suitable for babies aged 0-6 months.