100% Natural Nourishing Mascara, Black Brown vs Lash Blast Volume Waterproof Mascara Very Black: which is safer?

Where these two actually differ

• We flag Fragrance allergens and undisclosed sensitizers and Bacterial growth and contamination in wax formula on the Burt's Bees and not on the CoverGirl.
• We flag 1,4-dioxane (cosmetic impurity), Formaldehyde or formaldehyde-releasing preservatives, Eye irritation or allergic contact dermatitis from fragrance or preservatives and Bacterial or fungal growth in product tube over time on the CoverGirl and not on the Burt's Bees.
• The Burt's Bees is Wax, pigments, natural oils (typical mascara base) where the CoverGirl is Proprietary waterproof mascara formulation with undisclosed coating or treatment, which is most of the difference in these two grades.
• The gap is 45 points, wide enough that this is not a close call, and the Burt's Bees is the one to buy.
• We are less certain about the CoverGirl grade, at 32% confidence against 78%, because it discloses less.