According to the parent-child encyclopedia website, the methods for identifying the authenticity of a2 milk powder are:

1. There are two main types of Australian version packaging on the market, one is from 2015 Packaging, one is the new packaging in 2016. In the old package of A2 milk powder, the characters "a" and "2" are separate, but in the new package's logo, the lower ends of "a" and "2" are connected together. The a2 fonts in the two trademarks are different. For details, please refer to the picture comparison. The trademark on the old packaging was lighter in blue, and the trademark on the new packaging was darker.

2. According to the reviews provided by consumers, the first stage of Australian a2 milk powder has a milky aroma, is not fishy, ??and is not easy to melt. There are often milk lumps. Shake vigorously. The second stage powder is more delicate when eaten dry. Then there are a lot of bubbles.

3. There is an official QR code of a2 milk powder on the outer packaging of a2 milk powder in Australia. You can scan it to enter the official website. If you can’t scan it or the one that comes out is not the official website, you may have to buy it. It's fake.

4. Because milk powder is animal-based, with the change of seasons or the amount of rain, the quality, color, taste, and thickness of the milk powder will also be affected. The most authoritative way is to remove the medicine from the milk powder. The supervisory bureau makes an appraisal. This is more troublesome, but the credibility is very high.