Cold storage slows the slow breakdown of benzyl alcohol over time and keeps the preservative effective longer
A.HegartyM
The free base powder is in its neutral/free base state, which has lower water solubility than the protonated HCL salt form

However, if you are still unsure, here is a partial list of where Mind Lab Pro delivers to: United States, China, Japan, Germany, United Kingdom, France, Brazil, Italy, India, Russian Federation, Canada, Australia, South Korea, Spain, Mexico, Indonesia, Netherlands, Turkey, Saudi Arabia, Switzerland, Sweden, Nigeria, Poland, Argentina, Belgium, Norway, Austria, Thailand, United Arab Emirates, South Africa, Denmark, Malaysia, Singapore, Israel, Egypt, Hong Kong, Philippines, Finland, Chile, Ireland, Pakistan, Greece, Portugal, Iraq, Kazakhstan, Algeria, Qatar, Czech Republic, Peru, New Zealand, Romania, Vietnam, Bangladesh, Kuwait, Angola, Hungary, Ukraine, Morocco, Puerto Rico, Ecuador, Sri Lanka, Cuba, Belarus, Azerbaijan, Sudan, Luxembourg, Myanmar, Dominican Republic, Uzbekistan, Kenya, Guatemala, Uruguay, Croatia, Bulgaria, Ethiopia, Costa Rica, Slovenia, Tunisia, Lithuania, Tanzania, Turkmenistan, Panama, Lebanon, Serbia, Latvia, Cyprus, Paraguay, Iceland, Jamaica, Bahamas, and many other countries

On a U-100 syringe, your 0.25mg dose falls at 12.5 units
Tripp A, Oh H, Guilloux JP, Martinowich K, Lewis DA, Sibille E (2012)