Is this authentic Kirkland Minoxidil?
Yes — 100%. We source our Kirkland Signature products directly from verified distributors. Every unit is sealed, unopened, and identical to what you would purchase at a Costco warehouse. We do not sell grey-market, repackaged, or counterfeit products. Your hair care journey deserves the real thing.
Is minoxidil studied for hair loss?
Yes. Minoxidil is one of the most widely used topical products for male-pattern hair thinning. It has been used for over 30 years and is a topical product widely used by men experiencing hair loss. Consistent, twice-daily use as directed is key to achieving and maintaining results. Learn more in our Complete Guide to Minoxidil in Canada.
How do I use minoxidil?
Apply 1 mL of solution (or half a capful of foam) directly to the dry scalp in the area of hair thinning, twice daily — once in the morning and once at night. Gently spread with your fingertips and wash your hands thoroughly after application. Do not rinse the product out; allow it to dry naturally for at least 4 hours. Do not exceed the recommended dose. For a full step-by-step guide, see our Complete Minoxidil Guide.
When will I see results?
Results vary by individual. Some users may begin to notice reduced shedding within the first few weeks of consistent use. Some users notice changes in hair density between 2–4 months of consistent twice-daily use as directed. Full results are generally assessed at 6–12 months. Some users experience a temporary increase in shedding during the first few weeks — this is noted in the product information and is considered normal. For a deeper look at the month-by-month timeline, visit our Complete Guide to Minoxidil in Canada.
What is the difference between foam and solution?
Both contain 5% minoxidil as the key ingredient. The solution uses a liquid dropper applicator and is ideal for targeted application to specific areas. The foam is alcohol-free, dries faster, and is generally preferred by those with sensitive scalps or who find the solution too greasy. Choose based on your scalp sensitivity and lifestyle preference. Read our full liquid vs. foam comparison for more detail.
How long does a supply last?
A standard 3-month supply provides approximately 90 days of twice-daily use. We also offer 12-month supply options for greater savings and uninterrupted use — consistency is critical for maintaining results, so stocking up is always a smart move. Read our storage and shelf life guide to learn how to safely store bulk supplies.
Can women use this product?
The Kirkland Minoxidil products we carry are formulated and intended for men only. Women experiencing hair loss should seek appropriate guidance, as there are separate 2% minoxidil formulations available for female-pattern hair loss. Using a men’s 5% minoxidil product is not recommended for women.
Is minoxidil safe to use?
Minoxidil is a topical product that has been widely used by men for decades when applied as directed. As with any topical product, it is important to follow the usage instructions on the label. If you have any health concerns, including heart or blood-pressure conditions or scalp conditions, review the product label carefully before use. For more background, see our About Minoxidil Bay page.
What are the side effects?
Most users tolerate minoxidil well. Possible side effects include scalp dryness, itching, or irritation — particularly with the solution formula due to its alcohol content. Less commonly, some users may experience unwanted facial hair growth if the product contacts the face. Rare but serious side effects include chest pain, rapid heartbeat, or swelling; discontinue use immediately if these occur. Please refer to the full product label for a complete list of precautions.
Is there an age requirement?
Yes. Minoxidil is intended for use by men aged 18 and older. It is not suitable for individuals under 18 years of age.
How long does shipping take?
We offer free shipping across Canada on all orders. Most orders are delivered within 3 business days of dispatch. You will receive a tracking number by email once your order has shipped so you can monitor your delivery in real time.
Do you ship outside of Canada?
At this time, we ship exclusively within Canada. We are working on expanding our reach — stay tuned for updates.
What is your return policy?
We stand behind every product we sell. If you are not satisfied for any reason, you may return your order within 60 days of purchase for a full refund. Return shipping is on us — we will provide a prepaid return label. Products must be unused and in their original sealed packaging to qualify for a return. To initiate a return, please contact us.
What if my order arrives damaged or incorrect?
We sincerely apologize if this happens. Please contact us within 7 days of receiving your order with a photo of the issue, and we will arrange a replacement or full refund at no cost to you — no return required.