What is the different between this and M21?

M7 is a show car GLAZE. It has absolutely no protective properties. It's primary purpose was to create an out of this world shine for show cars which you would top with your high end wax or sealant. M21 is a synthetic polymer SEALANT. It has protective properties that will protect your paint from UV, acid rain, and industrial pollutants for months if cared for properly. You could use M7 to polish your car, then use M21 to protect your paint. According to Meguiars, they have improved the formula of M21 to give off a better shine than previously.

Does it restore headlights better than plastx ?

No, although in theory not harmful to headlights this will not do much to restore a headlight. If you are looking to restore headlights you really should consider PlastX or one of our Headlight Restoration Kits.

Does this contain abrasives or no abrasives? Reviews/comments have conflicting info. Please advise! Thanks!!

Ignore the responses and check Meguiar's website or their online forum. There are no abrasives in M7. It is not a polish. It is a glaze. Meguiar's has products that are polishes and they are called polishes. This is called a glaze and not a polish for a good reason - see where I'm going with this? :) While there are many different descriptions of a glaze used by different companies, Meguiar's suggests this as a final layer (on top of wax or sealant) just before a car show, to fill any microscopic scratches but it will not last as long as a wax or sealant. Because of the large amount of oil in this product, it will fill in the scratches and really give that 'liquid smooth' look but it won't remove the scratches. That's what a polish does. They also suggest this be applied to single-stage paint so the oil can add depth of color back to the paint after compound or polish and before wax or sealant.

So, 21 or 26 after 7 application?

Definitely a 26 after 7 applications

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Description

✨ Mirror-Perfect Shine That Commands Attention ✨

EFFORTLESS APPLICATION - Smooth liquid formula glides on and buffs off with minimal effort, saving you time.
LONG LASTING PROTECTION - Creates a durable, high-gloss barrier that resists dirt and water for weeks.
UNIVERSAL COMPATIBILITY - Works seamlessly on all vehicle paint types—no guesswork, just brilliance.
SHOWROOM SHINE EVERY TIME - Transforms your car’s finish into a flawless mirror glaze that turns heads.
TRUSTED AMERICAN CRAFTSMANSHIP - Proudly made in the USA by Meguiar’s, the gold standard in car care.

Meguiar's M7 Show Car Mirror Glaze is a 16oz premium liquid polish designed for universal use on all vehicle paint surfaces. Made in the USA, it delivers an easy-to-apply, long-lasting mirror-like finish that enhances and protects your car’s appearance with minimal maintenance.

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