Natural Strength: Fast-Acting Nail Repair Compared… Thick or Yellow? (Versus Fungus) We’ve been testing the Toenail Fungus Treatment Extra Strength and have noticed some promising results for thick, yellow, and damaged nails. Despite promising a "Natural, Safe, and Gentle" formula, its fast-acting formulation delivers noticeable improvements without harsh chemicals. Our fingernails, in particular, show clearer, less brittle edges within weeks of consistent use, which is a relief given how stubborn fungal infections can be. The gentle approach means fewer trade-offs—no strong odors or irritation, which we appreciate. Whether dealing with thick, yellowed growths or general dullness from fungus, this treatment aligns with our preference for effective yet mild solutions. We’re optimistic about long-term results, but for now, it’s a standout in balancing potency and mildness.