The closest dupe for Obagi Professional-C Suncare Broad Spectrum SPF 30 Sunscreen Lotion is Australian Gold SPF 30 InvisiDry Spray Sunscreen, Water Resistant, a 94% formula match: it shares 5 of the original's 6 key ingredients (including Vitamin c, Oxybenzone and Avobenzone).
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Our similarity score compares product formulas based on shared active ingredients, hero ingredients, and overall formula composition. A higher score means a more similar formula.
Note: Similarity is based on WIMJ's formula analysis (actives + overall formula similarity). Ingredient concentrations are estimated; products aren't lab-tested. A similar formula doesn't guarantee the same texture or feel.