Sure, I can provide you with some of Amazon's best-selling hydrating concealers. These products are highly rated due to their hydrating properties and ability to conceal imperfections while providing a natural finish.

1. Maybelline Instant Age Rewind Eraser Dark Circles Treatment Concealer: This concealer is infused with goji berry and Haloxyl, which help to reduce the appearance of dark circles, fine lines, and blemishes. It also provides hydration to the skin, preventing it from drying out.

2. NARS Radiant Creamy Concealer: This product is known for its luxurious texture and luminous finish. It contains botanicals that hydrate and lighten the skin, reducing the appearance of imperfections.

3. Tarte Shape Tape Concealer: This vegan, super-blendable formula instantly helps brighten, smooth & give the skin a firmer, more lifted look. It's also infused with shea butter, a natural ingredient known for its hydrating and skin-smoothing properties.

4. L'Oreal Paris Makeup Infallible Full Wear Concealer: This full-coverage, high-resistance concealer is waterproof, transfer-resistant, and fade-resistant. It's enriched with hydrating ingredients that keep the skin moisturized and looking fresh all day.

5. Neutrogena Hydro Boost Hydrating Concealer: This concealer is designed to hydrate skin for smooth, refreshed skin. It's formulated with hyaluronic acid, a powerful hydrating agent, and is non-comedogenic, which means it won't clog your pores.

Remember, the effectiveness of a concealer is not only about its coverage but also about its ability to blend seamlessly with your skin and provide hydration to prevent dryness and caking. Always choose a concealer that matches your skin type and tone for the best results.