Focusing on one product at a time usually helps people understand it better, especially if you explain its purpose clearly. Promoting too many things in one post can confuse readers and make your message weaker. However, showing related products together can work when they connect naturally, like a skincare set or a matching outfit. The main thing is to make sure your audience knows what to focus on. Try testing both methods to see what gets more response. Sometimes people engage more when they can see how products work together, but other times they prefer clear, simple promotions. It depends on your goal for each campaign.