Smoothie King • Add-Ins & Boosters
Collagen Booster
Collagen peptides for skin and joint support
Typical U.S. price — actual prices vary by location, franchise, and ordering platform.
Menu Labeling & Nutrition Information
2,000 calories a day is used for general nutrition advice, but calorie needs vary. Full nutrition information — including saturated fat, trans fat, cholesterol, sodium, sugars, and fiber — is available upon request from the restaurant and in the official nutrition guide. Calorie counts shown are approximate and based on official restaurant nutrition data; values may vary by location, preparation, and portion size.
Everything You Need to Know About the Collagen Booster
The Collagen Booster is collagen peptides for skin and joint support It comes in at 40 calories with 9g of protein, and is priced at $1.99 in the Add-Ins & Boosters section of the Smoothie King menu — about 4.98 cents per 100 calories. Smoothie King is a smoothie chain with over 1,400 locations known for The Original, Angel Food, The Activator, Gladiator, Hulk. Our Smoothie King menu guide covers prices, nutrition info, deals, and secret menu items.
How the Collagen Booster compares to similar Smoothie King items
| Item | Price | Calories | Price / 100 cal |
|---|---|---|---|
| Banana | $0.99 | 110 | 0.90 |
| Collagen Booster (this item) | $1.99 | 40 | 4.98 |
| Energy Booster | $1.49 | 5 | 29.80 |
| Peanut Butter | $1.29 | 190 | 0.68 |
| Protein Scoop | $1.49 | 100 | 1.49 |
Average price in the Add-Ins & Boosters section: $1.46. This item is above the section average.
Smoothie King secret menu items
Brownie Batter Blast · $9.49
Chocolate Gladiator blended with brownie bits and a scoop of peanut butter — tastes like cookie dough in a cup
How to order: Order a Chocolate Gladiator smoothie and ask to 'add brownie bits and a scoop of peanut butter.' Some locations have brownie add-ins at the counter.
The King's Protein · $9.99
Any smoothie with double protein and a banana blended in — a bodybuilder favorite
How to order: Order any protein smoothie and ask for 'double protein, extra banana.' Stores charge per protein scoop and per banana.
Coconut Coffee Fusion · $8.99
Caribbean Way blended with a shot of espresso — tropical cream with a caffeine kick
How to order: Order a Caribbean Way smoothie and ask them to 'add a shot of espresso.' Not all locations carry espresso, so call ahead.
PB&J Smoothie · $8.49
Peanut butter, strawberry, and banana blended together — a childhood classic in smoothie form
How to order: Order a Strawberry X-Treme and ask to 'add two scoops of peanut butter.' Some locations recognize the 'PB&J' request.
Dietary & allergen information
Is the Collagen Booster good value at Smoothie King?
At $1.99, the Collagen Booster costs about 4.98 cents per 100 calories against a $1.46 average in the Add-Ins & Boosters section. Value depends on what you order alongside it — pair it with the cheapest Smoothie King sides for the best total meal cost.
How to order the Collagen Booster at Smoothie King
The Collagen Booster is available at Smoothie King locations nationwide — dine-in, takeout, and in most markets delivery through the Smoothie King app or third-party services. Order through the official Smoothie King ordering page for pickup and delivery. Prices vary by location — check the current full Smoothie King menu for the latest pricing.
Pro Tips for Ordering the Collagen Booster
- 1Check current Smoothie King deals — Smoothie King Rewards — Points on Every Order.
- 2Prices have trended +6.7% vs 2025 on our tracking — expect slight variation by location.
Tips compiled from customer reviews on Google, Yelp, Reddit, and our menu tracking data.
Payment & holiday hours
Accepted payment
- Credit & debit cards (Visa, Mastercard, Amex, Discover)
- Cash
- Gift cards
- Apple Pay & Google Pay
Holiday closures
- Thanksgiving
- Christmas Day
Typical closures — individual locations may vary. Confirm locally before visiting.
Collagen Booster prices by city (estimated)
Prices vary by location. Estimates for the Smoothie King national-average pricing model:
- New York City: $8.95 (Estimated — urban premium operating costs — The Original)
- Los Angeles: $8.65 (Estimated — urban premium operating costs — The Original)
- Chicago: $8.15 (Estimated — higher operating costs — The Original)
- Houston: $7.65 (Estimated — lower operating costs — The Original)
- Atlanta: $7.85 (Estimated — on par with national average — The Original)
- Columbus: $7.50 (Estimated — lower operating costs — The Original)
More Smoothie King menu items
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About Smoothie King
Smoothie King is a smoothie chain with over 1,400 locations known for The Original, Angel Food, The Activator, Gladiator, Hulk. Our Smoothie King menu guide covers prices, nutrition info, deals, and secret menu items. Browse full menu sections including smoothie classics, wellness blends, energy blends, add-ins & boosters. Current deals include Smoothie King Rewards — points on every order.
Smoothie King FAQ
What is the lowest-calorie item at Smoothie King?
What is the highest-protein item at Smoothie King?
Where does the Smoothie King nutrition data come from?
Prices and customer sentiment sourced from the official Smoothie King website, nutrition guide, and public reviews. Source: www.smoothieking.com