Kirkland Signature Minoxidil Lotion 5%

Kirkland Signature 5% minoxidil contains exactly the same clinically proven active ingredient, at the same 5% strength, as premium brands like Regaine. It costs less per month, and the gap widens on the larger packs. That is why it is our best-seller.

Not sure how to tell Kirkland Signature stock from an imitation? Read our guide on how to identify counterfeit Kirkland, or see the full Kirkland vs Regaine comparison.

Minoxidil works with consistency: most users see results after 3 to 6 months of daily use. Our 3, 6 and 12-month supplies lower the per-month cost and keep your routine unbroken.

Frequently asked questions

Is Kirkland minoxidil the same as Regaine?

Both contain the identical active ingredient: minoxidil 5%. The clinical effect comes from the minoxidil itself, so the main differences are brand and price. Kirkland is roughly a third cheaper at three months, and about 40% of the brand price on the twelve-month pack. See our full Kirkland vs Regaine comparison.

Is Kirkland Signature minoxidil genuine?

Yes. It is Kirkland Signature stock, the same product Costco sells in the US. Counterfeits do circulate online, so our guide on spotting imitation Kirkland shows exactly what to check.

How long does minoxidil lotion take to work?

Most users notice reduced shedding after 2 to 3 months and visible improvement after 3 to 6 months of consistent twice-daily use. Results build gradually, which is why multi-month supplies help you stay on track.

Should I choose minoxidil lotion or foam?

The lotion is precise to apply and the most economical. The foam dries faster and contains no propylene glycol, which suits people with a sensitive or itchy scalp. Effectiveness is comparable; what matters most is consistency.

What happens if I stop using minoxidil?

Minoxidil only works while you use it. If you stop, hair gained is usually shed again within around 3 to 4 months and thinning resumes its previous course.