1. Friso Gold No. 4
Friso Gold 4 is a Dutch cooling milk formula designed for babies aged 2-4 years, enriched with GOS fiber to promote the growth of beneficial bacteria, supporting your baby's digestion during this stage. It also contains Nucleotide, DHA, zinc, vitamin D, and selenium, which provide essential nutrients to support brain development, height, and weight.
However, when it comes to boosting immunity, the reviews are limited, and its price point is higher compared to other cooling milk formulas available on the market.

2. NAN Optipro No. 4
Nestlé NAN Optipro 4 is a Swiss-made product, specially designed to suit the needs of children from 18 months old, providing the Opti Pro nutrient system with the required amount of Whey protein. The DHA:ARA ratio of 1:1 in the formula promotes better brain development and vision.
However, many parents on parenting forums have mentioned that the weight gain of their babies is slower than expected, and their babies are not as chubby as anticipated. Additionally, this milk formula tends to be pricier compared to other similar options available on the market.

3. Colos Opti
With a refreshing taste and a combination of premium nutrients, Colos Opti has raised the bar for immunity-boosting milk formulas in the market today.
A key highlight of Colos Opti is the inclusion of Colostrum ColoslgG 24h, exclusively imported from Pantheryx, the largest colostrum group in the world (USA). This colostrum is collected within 24 hours after birth and contains 100 times the antibody level of mature cow's milk.
The IgG antibodies from this high-quality colostrum, combined with Bifidus probiotics and the dual fiber system HMO - FOS/Inulin, support your baby’s developing digestive system, promoting smooth digestion and optimal nutrient absorption.
Additionally, the IgG antibodies from Colos IgG 24h, together with 2'FL - HMO (oligosaccharides found in breast milk), strengthen immunity in both the digestive and respiratory systems, helping keep your baby healthy and strong.
Many mothers in online parenting communities have shared their positive experiences with Colos Opti. After just one month of use, parents have noticed significant improvements in their baby's health, including better appetite, improved sleep, less congestion, and reduced fussiness.

4. Colos DHA+
Colos DHA+ is another highly popular immune-boosting milk formula, especially favored by new mothers. Like Colos Opti, Colos DHA+ contains Colostrum ColosIgG 24h, providing IgG antibodies to strengthen immunity. Additionally, it contains 10 brain-boosting nutrients, with three times the DHA from algae, offering a mild, delicious taste that's easy for babies to drink.
Beyond its brain development benefits, Colos DHA+ also supports healthy digestion, helping your baby gain weight steadily and in a scientifically balanced manner.

5. ColosBaby IQ Gold
The standout benefit of ColosBaby IQ Gold is its ability to boost immunity by providing IgG antibodies from Colostrum ColoslgG 24h, which directly combats harmful bacteria and viruses. Combined with colostrum, the formula also contains 2’FL-HMO nutrients and vitamin B to enhance digestive immunity and help with picky eating in young children.
ColosBaby IQ Gold further enriches your child’s development with essential nutrients such as DHA from algae, Lactium, Choline, and Taurine, all contributing to improved concentration and brain development. This milk is highly praised by many mothers in parenting forums for its delicious taste, baby-friendly flavor, strengthened immunity, and consistent weight gain.

