Which scores higher with the experts?
Nizoral Ketoconazole 1% Anti-Dandruff Shampoo holds a Guru Score of 87%, just ahead of K18 Leave-In Molecular Repair Hair Mask at 85%. The first draws on 16 independent expert reviews, the second on 16. On the experts' own numbers that puts Ketoconazole 1% Anti-Dandruff Shampoo in Approved territory and Leave-In Molecular Repair Hair Mask in Approved.
What do the experts say about Ketoconazole 1% Anti-Dandruff Shampoo?
Nizoral Ketoconazole 1% Anti-Dandruff Shampoo carries a Guru Score of 87% from 16 independent experts. Multiple dermatologists praise Nizoral for its potency against yeast-driven dandruff and scalp inflammation, and note that ketoconazole has mild anti-androgen properties that may help slow hair loss when used a few times weekly. However, one expert reports it made fine, fragile hair dry and brittle enough to break, so those with already-compromised hair may want to patch-test first and follow with a good conditioner to protect strands.
What do the experts say about Leave-In Molecular Repair Hair Mask?
K18 Leave-In Molecular Repair Hair Mask carries a Guru Score of 85% from 16 independent experts. A peptide treatment that works in 4 minutes to visibly smooth, strengthen, and reduce frizz in damaged or color-treated hair by repairing keratin chains at the molecular level. The catch is technique: skip conditioner before applying it, use just a small amount on towel-dried hair, and let it sit a few minutes so the active ingredient can penetrate properly; those with healthy, undamaged hair may want to avoid it, as concentrated peptides can weigh down or stiffen hair that doesn't need repair. Price is steep for many, though the formula delivers noticeable results with consistent use over weeks to months.
Which should you choose?
On the experts' scores Nizoral Ketoconazole 1% Anti-Dandruff Shampoo comes out ahead, 87% to 85%, a gap of 2 points. It has 16 experts behind it against 16 for K18 Leave-In Molecular Repair Hair Mask. Both are independently verified on the Guru Index, so either is a sound pick; let the use case and your budget settle it.