Beautiful Skin Foundation

Both lead with a silicone base plus glycerin, sodium hyaluronate, and tocopherol, making the hydration/skin-feel profile very close to the Charlotte Tilbury formula.

Shares dimethicone, glycerin, and tocopherol for a similar silicone-hydration base, but lacks sodium hyaluronate for the extra plumping hydration boost.

Does include sodium hyaluronate along with dimethicone, glycerin, and tocopherol, but it's buried in a much heavier, more complex silicone/mattifying formula that changes the overall feel.

Shares dimethicone, glycerin, tocopherol, and sodium hyaluronate, but these are diluted among many extra silicones, powders, and stabilizers giving a heavier, more complex formula than the minimalist source.

Only shares dimethicone, glycerin, and tocopherol in a much more complex silicone-heavy formula, missing the sodium hyaluronate that's key to the original's hydration claim.