Innermost The Define Booster is a food supplement developed specially for metabolising fat, boosting energy and improving the muscle definition in your body. It helps in building stamina and boosting your cognitive performance. Made from 100% pure micronized acetyl l-carnitine. Contains no additives, colours, fillers or GMO nasties.
Product Information:
Delivery Information
Earliest Delivery Date/Time
Displayed at the top of each product page. We deliver most days of the year, including public holidays.
Order before 5pm (Mon-Fri) | Earliest delivery: next business day from 9am
Delivery Time Slot Selection not applicable. Deliveries will be made between 9am-6pm.
Premium Delivery Service
Urgent ASAP delivery +$200
Remote Areas – Outlying Islands (Shek O, Cheung Chau, Lamma Island, Peng Chau, Sha Tau Kok, Lau Fau Shan, Tong Fuk, Pui O) | +$300 remote delivery fee
Order before 5pm | Earliest delivery: next day from 9am
Delivery Time Slot Selection not applicable. Deliveries will be made between 9am-6pm.
If your preferred date isn’t shown at checkout, contact us—we’ll do our best to accommodate.
Return & Substitution Policy
Substitution Policy
We make every effort to deliver products exactly as shown. However, due to seasonal availability or supplier shortages, items, brands/flavours, packaging, or presentation may be substituted. Any substitution will be of equal or greater value and will maintain the overall style/theme and quality of your order. Where flavours/brands vary, close equivalents will be chosen if necessary.
Refund & Replacement Policy
Due to the perishable nature of our products—and hygiene considerations for baby and personal-care items—refunds and returns are not available. If something arrives damaged, missing, or not as expected, please contact us within 24 hours of delivery with your order number and clear photos of the packaging and contents. We will arrange a prompt replacement of the affected item(s) or provide an equivalent remedy at our discretion.
Please note: Issues arising from incorrect/incomplete addresses, recipient unavailability, or building/access restrictions may incur redelivery fees.
Our 100% Satisfaction Guarantee
If quality falls short, notify us within 24 hours of delivery and we will provide a fresh replacement (for perishable items) or an equivalent replacement (for non-perishable items).
Exclusions: This guarantee does not cover special customer requests (e.g., delivery timing windows, specific colours/packaging finishes). Variations may occur, and substitutions may be made where necessary.
100% Satisfaction Guarantee 
Same day delivery 
Free delivery
100% Satisfaction Guarantee 
Same day delivery 
Free delivery