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If you shop at Sephora UK, use code REALLYREESPH for £10.50 off.
If you’re on the hunt for a hydrating serum that goes beyond the basics, the Sunday Riley Tidal Deep Hydration and Plumping Serum is one that genuinely stands out. From the very first use, it feels like more than just a typical hyaluronic acid formula – it delivers that instantly satisfying plump, glossy finish while quietly working to support the skin barrier and lock in hydration for the long haul. I’ve been testing it and here’s what you need to know.
Final Thoughts
The Sunday Riley Tidal Deep Hydration and Plumping Serum is a great choice if you want a hydrating serum that does more than just the basics.
It combines a really enjoyable, slightly creamy texture with impressive hydration performance, plus that added benefit of barrier support and smoothing peptides.
If you love plump, fresh, healthy-looking skin but don’t want anything heavy, this is definitely worth considering.
If you are still looking for a serum, check out my Best Serums for 2026 – all Skin Types & Budgets blog post.
