Can I use this or Hard as Nails?

I preferred this as I have both. My nails are super thin and brittle and Diamond is harder than the Hard as Nails. And it takes less product of this than Hard as Nails because the second is thicker more polish likw. This is more liquid and quicker to dry completely

can I use this over gel nail polish

Yes you can, but for it to work (strengthen the nail) it should be used directly on the nail

How does this compare to the sally hansen mega strength hardener?

hardener worked for a while and not so muchy. try both

i have a split that grows out lengthwise and wont let me play guitar the way i want. Can this help?

You won't know until you try it, but my guess is, it would help if you kept the nail trimmed.

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💅 Unlock your nails’ diamond-level strength instantly!

TITANIUM POWER BOND - Advanced titanium formula locks in moisture and seals fragile nail layers.
PEEL CRACK DEFENSE - Effectively prevents cracking, peeling, and ripping for flawless nails.
INSTANT HARDNESS BOOST - Experience noticeably stronger nails right after application—no waiting required.
DIAMOND INFUSED STRENGTH - Micro diamond particles reinforce nails instantly for a visibly tougher finish.
MOISTURE LOCK TECHNOLOGY - Keeps nails hydrated to promote healthy, longer-lasting growth.

Sally Hansen Diamond Strength Instant Nail Hardener is a 14 ml liquid formula enriched with titanium and micro diamond particles that instantly bonds to nails, creating a shatterproof protective shield. Designed to prevent breakage, cracking, and peeling, it locks in moisture to promote stronger, healthier nail growth. Compact and easy to apply, it’s a must-have for anyone seeking durable, salon-quality nails at home.

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Product Dimensions	7.3 x 2.54 x 13.97 cm; 63.5 g
Item Form	液体
External Testing Certification	Grüner Punkt - ARA (Verpackungskennzeichen)
Target Gender	Female
Color Name	ダイヤモンド強度硬化剤

Sally Hansen Diamond Strength Instant Nail Hardener 14 ml (並行輸入品)

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