Frequently Asked Questions

Is this authentic Kirkland or Rogaine minoxidil?

Yes — 100%. We source our Kirkland Signature and Rogaine products directly from Costco USA. 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 regrowth journey deserves the real thing.

Is minoxidil clinically proven to work?

Yes. Minoxidil is the only topical hair loss treatment approved by Health Canada and the FDA for androgenetic alopecia (male-pattern baldness). It has been studied in clinical trials for over 30 years and is recommended by dermatologists worldwide. Consistent, twice-daily use is key to achieving and maintaining results.

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.

When will I see results?

Most users begin to notice reduced shedding within 4–8 weeks. Visible regrowth typically appears between 2–4 months of consistent twice-daily use. Full results are generally assessed at 6–12 months. It is normal to experience a temporary increase in shedding during the first 2–6 weeks — this is a sign the treatment is working and new hair follicles are entering the growth phase.

What is the difference between foam and solution?

Both contain 5% minoxidil as the active ingredient and are equally effective. 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.

How long does a supply last?

A standard 3-month supply (6 bottles of solution or 3 cans of foam) provides approximately 90 days of twice-daily use. We also offer 6-month and 12-month supply options for greater savings and uninterrupted treatment — consistency is critical for maintaining results, so stocking up is always a smart move.

Can women use this product?

The Kirkland Signature and Rogaine products we carry are formulated and indicated for men only. Women experiencing hair loss should consult a dermatologist or physician, as there are separate 2% minoxidil formulations approved for female-pattern hair loss. Using a men's 5% minoxidil product is not recommended for women without medical supervision.

Is minoxidil safe to use?

Minoxidil has a well-established safety profile when used as directed. It is Health Canada–approved, dermatologist-recommended, and has been used safely by millions of men worldwide. As with any medication, it is important to follow the usage instructions on the label. Consult your physician before use if you have a history of heart disease, low blood pressure, or scalp conditions.

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 and seek medical attention 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 indicated 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 through our Contact Us page.

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.