You can request samples from various brands to try out. Not everyone can accept the taste (I hated it 😅). I drank Meiji/Marigold instead. Also, do take note of the sugars in maternal milk.
https://www.wyethnutrition.com.sg/free-sample/promama
https://www.friso.com.sg/samples?gclid=Cj0KCQjw8uOWBhDXARIsAOxKJ2HpJOgyEw1918Zpk3b9DXHoWWXVBtC3oIAdR5gK4XoGnJDnuX1K5TYaAla8EALw_wcB
https://www.dumex.com.sg/registration.html?gclid=Cj0KCQjw8uOWBhDXARIsAOxKJ2Gfp1fZtigB0CpWKtCGix1lGd1xN9u8K1M1BQgfkwMN6fQ01Aq8_VcaAok2EALw_wcB
https://abbottfamily.com.sg/campaigns/9C33E92E-DB0B-403A-BD71-AE7D7E139130
https://www.babyandme.nestle.com.sg/samples
https://www.anmum.com/sg/en/contactus/sample-request
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