All formulas
Head to head
A2 Platinum vs Bubs Stage 1 Organic Grass Fed
In independent testing, Bubs Stage 1 Organic Grass Fed showed lower heavy-metal levels overall (purity 77 vs 75). The full lab numbers, metal by metal:
| Purity score | 75B | 77B |
| Lead ppb | 2.9 | 1.9 |
| Total Arsenic ppb | — | 2.9 |
| Cadmium ppb | — | 1.9 |
| Aluminum ppb | 1,770 | 1,985 |
| Price | $1.26/oz | $1.70/oz |
| Est. cost at 28 oz/day | $5.48/day | $7.40/day |
| Origin | AU / NZ | AU / NZ |
| Base | Cow's milk | Cow's milk |
| Buy | Buy |
A2Platinum
BubsStage 1 Organic Grass Fed
Lab data: Consumer Reports independent testing, March 2025. Purity scores are relative to the tested cohort — methodology. Not medical advice; consult your pediatrician.