Indulge your sweet tooth without the sugar crash with the Gainful Sweet Treat Protein Flavor Sticks for Unflavored Protein Powder. This dessert-inspired variety pack includes 14 single-serve flavor enhancers in Vanilla, Salted Caramel, and Cookies & Cream-perfect for customizing your unflavored protein without adding sugar or calories. Crafted for use with any unflavored plant-based or whey protein powder, these protein flavor packets deliver delicious taste in every scoop. Each stick contains 10 calories or less, with no added sugar, artificial flavors, or sweeteners-just clean ingredients naturally sweetened with monk fruit and stevia. These keto-friendly flavor boosters are ideal for low-carb, high-protein, and clean eating lifestyles. Whether you're prepping shakes at home or fueling up post-gym, these portable protein flavor mix-ins make it easy to switch up your flavor without switching your base powder. Stir or shake into your protein shake, or mix into smoothies, Greek yogurt, oatmeal, or overnight oats. Rotate between Vanilla, Salted Caramel, or Cookies & Cream for a new flavor each day. Mix it in a shaker bottle, add 1 scoop of your unflavored Gainful Protein plus 1 Flavor Boost Stick to 8-10 oz of ice cold water or milk. Shake vigorously and enjoy a flavorful, dessert-inspired protein drink. No more boring protein-just sweet, simple, satisfying flavor.
Shipping & Delivery Information
Our Shipping Promise
At Slickpurchase, we understand how important your purchases are. That's why we take extra care with every package we send. All orders are shipped in double-boxes with full insurance for additional protection, ensuring your items arrive safely.
Processing & Shipping Timeline
- Processing Time: Orders are processed within 3-6 business days
- Domestic Delivery: Typically 6-10 business days
Please note that delivery times are estimates and may vary based on your location, weather conditions, or other unforeseen circumstances.
Shipping Destinations
Slickpurchase currently only ships to the United States.
Shipping Costs
We are pleased to offer free standard shipping on all orders within the United States.
Discreet Packaging
We respect your privacy. All Slickpurchase packages are shipped with complete discreet packaging. The product name, description, sender's name, and any information that hints about the contents are encrypted. Your package will arrive without any indication of what's inside, ensuring your purchase remains confidential.
Signature Requirements
Important Note: All orders valued above $250 will require a signature upon delivery for your protection.
Order Tracking
Once your order ships, you'll receive a tracking number via email so you can monitor your shipment's progress every step of the way.
Lost or Delayed Shipments
If your package is lost or significantly delayed, please contact our support team immediately, and we will assist you in resolving the issue.
Additional Security Measures
For your protection, we may contact you for additional order verification of the payment method on certain orders.
Questions or Concerns?
For details on returns and refunds, please refer to our Return Policy page.
For any questions about shipping or delivery, please contact our customer service team at support@slickpurchase.com.












