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FROM THE FLIGHT DECK

The MACH Blog

Notes on flying better, written with working crew.

04 Sep 2026 aviation

Cabin Dryness and Turbulence: Staying Hydrated When Flying Gets Hard

Cabin dryness and turbulence stress both deplete you faster than you realise. Here's a practical hydration strategy for long-haul flights — for crew and...

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04 Sep 2026 aviation

Jet Lag Recovery: How Hydration Speeds Up Your Reset

Dehydration makes jet lag significantly worse. Here's how a hydration-first approach to recovery — before, during, and after your flight — can speed up...

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04 Sep 2026 aviation

Electrolytes vs Water: Which Is Better for Hydration in Flight?

Water alone isn't always enough at altitude. Here's why electrolytes are essential for effective in-flight hydration — and how to use both correctly.

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04 Sep 2026 aviation

Caffeine and Hydration in Flight: What Pilots and Crew Need to Know

Caffeine at altitude is a double-edged sword. Understand how it interacts with cabin dehydration — and how to use electrolytes to maintain performance on...

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BEFORE YOU BOARD

Questions, answered.

Everything about the formulas, flying with MACH, and how orders work. If we have missed something, ask us. Q1: How do I use these supplements during my trip? Simply mix one sachet into 300–500ml of water. Use the Focus & Hydrate formula prior to departure or during daytime flight hours when you need to stay alert and hydrated. Take the Wind Down formula 30–60 minutes before you plan to sleep on an evening flight or upon settling into your hotel. Q2: Can I take both formulas on the same long-haul journey? Yes, they are designed as a complete day-to-night travel system. Many passengers take Focus & Hydrate during the first half of a long-haul flight, then switch to Wind Down when preparing for rest before landing. Always follow the recommended daily intake on each packet. Q3: Are these sachets compliant with airport security rules? Yes. Our supplements come in individual dry powder sachets, making them completely compliant with UK Civil Aviation Authority (CAA) and international liquid restrictions. You can take them through security empty-handed and mix them with water once airside or on board. Q4: Will the daytime Focus formula make me feel jittery or anxious? Not at all. The Focus & Hydrate formula is 100% caffeine-free. It provides sustained mental clarity and tiredness reduction using essential B-vitamins (B5, B12), Vitamin C, and electrolyte minerals rather than heavy stimulants. Q5: Will the evening formula cause grogginess when I wake up? No. Wind Down uses gentle, non-sedative nutrients such as Magnesium Glycinate, Vitamin B6, and Lemon Balm Extract to support normal nervous system function and natural relaxation, allowing you to wake up clear-headed. Q6: Why is Magnesium Glycinate used in the evening formula? Magnesium Glycinate is a highly bioavailable form of magnesium bound to the amino acid glycine. It is exceptionally gentle on the stomach compared to cheap forms (like magnesium oxide) and supports normal muscle function and psychological well-being. Q7: Are your products vegan and free from major allergens? Yes. Both formulas are 100% suitable for vegans and vegetarians, non-GMO, and free from gluten, dairy, soy, and artificial colors or preservatives. Q8: Why is ginger extract included in the pre-flight formula? Ginger root extract has been traditionally valued by travelers for centuries. We include it alongside our hydration blend to provide a crisp, refreshing taste and settle the stomach during flight. Q9: Can these supplements prevent or cure jet lag? No. Under UK food regulations, supplements cannot claim to prevent, treat, or cure jet lag or sleep disorders. Our products are formulated with authorized nutrients that contribute to the reduction of tiredness and fatigue and normal psychological function. Q10: Can I use these if I am pregnant or on prescription medication? If you are pregnant, breastfeeding, taking medication, or under medical supervision, we recommend consulting your GP or healthcare professional before introducing any new dietary supplement.

No questions match that search. Try a different word, or get in touch below.

STILL NEED HELP?

Ask the crew.

Speak to real people. Our team is here to help with product advice, travel questions or anything else. We usually reply within one working day.

Get in touch

BEFORE YOU BOARD

Questions, answered.

Q1: How do I use these supplements during my trip? Simply mix one sachet into 300–500ml of water. Use the Focus & Hydrate formula prior to departure or during daytime flight hours when you need to stay alert and hydrated. Take the Wind Down formula 30–60 minutes before you plan to sleep on an evening flight or upon settling into your hotel. Q2: Can I take both formulas on the same long-haul journey? Yes, they are designed as a complete day-to-night travel system. Many passengers take Focus & Hydrate during the first half of a long-haul flight, then switch to Wind Down when preparing for rest before landing. Always follow the recommended daily intake on each packet. Q3: Are these sachets compliant with airport security rules? Yes. Our supplements come in individual dry powder sachets, making them completely compliant with UK Civil Aviation Authority (CAA) and international liquid restrictions. You can take them through security empty-handed and mix them with water once airside or on board. Q4: Will the daytime Focus formula make me feel jittery or anxious? Not at all. The Focus & Hydrate formula is 100% caffeine-free. It provides sustained mental clarity and tiredness reduction using essential B-vitamins (B5, B12), Vitamin C, and electrolyte minerals rather than heavy stimulants. Q5: Will the evening formula cause grogginess when I wake up? No. Wind Down uses gentle, non-sedative nutrients such as Magnesium Glycinate, Vitamin B6, and Lemon Balm Extract to support normal nervous system function and natural relaxation, allowing you to wake up clear-headed. Q6: Why is Magnesium Glycinate used in the evening formula? Magnesium Glycinate is a highly bioavailable form of magnesium bound to the amino acid glycine. It is exceptionally gentle on the stomach compared to cheap forms (like magnesium oxide) and supports normal muscle function and psychological well-being. Q7: Are your products vegan and free from major allergens? Yes. Both formulas are 100% suitable for vegans and vegetarians, non-GMO, and free from gluten, dairy, soy, and artificial colors or preservatives. Q8: Why is ginger extract included in the pre-flight formula? Ginger root extract has been traditionally valued by travelers for centuries. We include it alongside our hydration blend to provide a crisp, refreshing taste and settle the stomach during flight. Q9: Can these supplements prevent or cure jet lag? No. Under UK food regulations, supplements cannot claim to prevent, treat, or cure jet lag or sleep disorders. Our products are formulated with authorized nutrients that contribute to the reduction of tiredness and fatigue and normal psychological function. Q10: Can I use these if I am pregnant or on prescription medication? If you are pregnant, breastfeeding, taking medication, or under medical supervision, we recommend consulting your GP or healthcare professional before introducing any new dietary supplement.

No questions match that search. Try a different word, or get in touch below.

STILL NEED HELP?

Ask the crew.

Speak to real people. Our team is here to help with product advice, travel questions or anything else. We usually reply within one working day.

Get in touch