Which is better for covering gray hair?

Both claim 100% gray coverage, so either works. Revlon has the stronger review record, which makes it the lower-risk pick for full gray coverage.

Which red is more vivid?

Garnier Olia 6.65 Intense Red is the bolder, truer red. Revlon 45 Bright Auburn is warmer and more copper-toned.

Which is gentler on damaged hair?

Revlon markets bond repair with keratin and claims up to 98% less breakage. Garnier Olia relies on its oil base and is free of silicones and parabens. Both are ammonia-free.

How long does the color last?

Revlon states up to 8 weeks of color. Garnier does not give a week count for Olia. Reds in general fade faster than browns or blacks, so expect more upkeep with 6.65 Intense Red.

Is one worth the extra cost?

No prices were provided for either kit, so check current store prices on Deal.ai. If they are close, Revlon's higher rating and bond-repair claims make it the better value for most shoppers.

Can I use either on color-treated hair?

Yes. Revlon lists color-treated hair as suitable, and both are permanent kits meant for at-home use on all hair types.

Revlon ColorSilk Permanent Hair Color 45 Bright Auburn vs Garnier Olia Long Lasting Permanent Hair Color Kit 6.65 Intense Red

Both are permanent, ammonia-free drugstore kits with 100% gray coverage, so the choice comes down to shade and feel. Revlon ColorSilk 45 Bright Auburn is the safer pick for most shoppers: it has a much larger review base (4.6 from 54,061 ratings vs 4.2 from 26,703) and adds bond-repair keratin. Garnier Olia 6.65 Intense Red is the pick if you specifically want a vivid, oil-based red. No prices were provided for either kit, so compare live store prices on Deal.ai before buying.

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