Curated rather than exhaustive. Every entry lists its key ingredients, who it suits, and where it's cheapest right now.
5 products for dullness
Strong surface exfoliation for dullness and rough texture, at a very low price.
High-strength vitamin C at a very low price, with a gritty texture as the trade-off.
A cheap, effective hydration layer for tight, dehydrated skin.
A well-stabilised 15% vitamin C with ferulic acid and vitamin E.
SPF 50+ that feels like a moisturiser and leaves no white cast.