If recommend to add a higher SPF and broad spectrum sunscreen, and take it easy on exfoliation - Effaclar serum daily on top of Effclar duo is very likely to be too much. I’d choose one and apply 2-3 times a week. Your main active is Differin - it takes time to work, bit the results are usually good and sustainable, so I’d focus on helping your skin to tolerate it as well as possible (this would mean less exfoliation and keeping all the other routine steps simple and gentle)
If recommend to add a higher SPF and broad spectrum sunscreen, and take it easy on exfoliation - Effaclar serum daily on top of Effclar duo is very likely to be too much. I’d choose one and apply 2-3 times a week. Your main active is Differin - it takes time to work, bit the results are usually good and sustainable, so I’d focus on helping your skin to tolerate it as well as possible (this would mean less exfoliation and keeping all the other routine steps simple and gentle)