How do Kirkland Minoxidil and Member's Mark Minoxidil Compare?
Both Kirkland Signature (Costco) and Member’s Mark (Sam’s Club) Minoxidil are widely known to be manufactured by the same company: Perrigo Company plc.
Perrigo is a massive global provider of over-the-counter (OTC) health products and is the primary manufacturer for most "store brand" generics in the United States. The active ingredients and overall formulations are virtually identical because they are produced to the same FDA-approved generic standards.
Why they look so similar
Since both brands contract their pharmaceutical manufacturing to Perrigo, the only real differences you will find are:
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The Labeling: The branding and packaging graphics are specific to Costco or Sam's Club.
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The Price: Depending on current sales or membership deals, one may be slightly cheaper than the other.
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Availability: Kirkland is exclusive to Costco; Member's Mark is exclusive to Sam's Club.
Note: Because they are the same product in different bottles, you can switch between them without worrying about your hair regrowth progress being affected by a "different" formula.
