I've been using Nail Tek Intensive Therapy 2 Strengthener for several days now, and I must say it lives up to its claims of providing exceptional nail hardening. In comparison to OPI Nail Envy, I noticed a significant improvement, with my nails becoming 50% to 100% harder.
Nail Tek Intensive Therapy 2 is a game-changer when it comes to nail strength. It outperforms OPI Nail Envy by a wide margin, delivering noticeably harder nails.
Unfortunately, I did experience some discomfort and irritation on my elbows after using this product, as I had a brief itch. It's important to exercise caution, especially if you have sensitive or eczema-prone skin. I suspect a higher concentration of formaldehyde might be the culprit.
If you're looking for a nail strengthener that truly delivers on its promises, Nail Tek Intensive Therapy 2 is the way to go. However, if you have sensitive skin or a history of eczema, be sure to take extra precautions to avoid skin contact. Consider performing a patch test before applying it liberally.
Overall, I'm impressed with the effectiveness of Nail Tek Intensive Therapy 2 Strengthener and would continue using it, with the necessary precautions in mind.