Skratch Labs: review & honest read
The Boulder-based brand built on real-fruit flavor and a refusal to over-engineer. Sport Hydration is moderate-carb honesty; Super High-Carb is the HBCD bet.
·By Croix
Educational, not medical advice. Recipes and dosages are starting points — individual tolerance varies. Consult a healthcare professional or registered dietitian before changing your nutrition strategy. Full disclaimer.
What does Skratch Labs sell?
The Skratch Labs products tracked on this site, with macros, current retail price, and the DIY savings if you mix the same macros at home.
- Powder · 2:1 ratioSkratch Labs Sport Hydration Drink Mix
- Carbs
- 20 g
- Sodium
- 380 mg
- Calories
- 80 kcal
- Retail
- $1.00/serving
- DIY save
- ~88% off
- Powder · 12:1 ratioSkratch Labs Super High-Carb Sport Drink Mix
- Carbs
- 100 g
- Sodium
- 400 mg
- Calories
- 400 kcal
- Retail
- $5.24/serving
- DIY save
- ~25% off
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Who is Skratch Labs?
Skratch Labs was co-founded in Boulder in 2012 by Allen Lim — a sports physiologist who had been hand-mixing electrolyte drinks for the Garmin and RadioShack pro cycling teams — and chef Biju Thomas. The original Sport Hydration mix was deliberately the opposite of the high-carb premium products: ~20 g of carbs per scoop, a mix of cane sugar and dextrose, plus moderate sodium — designed for the all-day rider who wants a drink that tastes like real fruit, not a chemistry experiment.
More recently, Skratch added Super High-Carb to the line — a 100 g-per-scoop product built around Cluster Dextrin (HBCD), a branched cyclic glucose polymer with extraordinarily low osmolality. That product targets the elite carb-intake market (100+ g/hr) and represents Skratch's bet that ultra-low osmolality matters more at high concentrations than the 1:0.8 dual-transporter optimization Maurten and SiS chose.
What's their formulation philosophy?
Sport Hydration is the brand's identity. Real-fruit flavor (lemon, raspberry, etc., from actual fruit powder), moderate carbohydrate dose, sane sodium, and zero artificial sweeteners. The sugars are sucrose and dextrose — chemically a coupled glucose+fructose blend at roughly a 1:1 ratio, since sucrose splits 50/50 and the added dextrose is a small share of total carbs. It's the most palatable drink in the category for athletes who hate the cloying sweetness of premium fuels.
Super High-Carb is a different philosophy. The 12:1 glucose-to-fructose ratio (Cluster Dextrin + a touch of fructose) bets that HBCD's ultra-low osmolality lets a 12% carb solution clear the stomach without GI distress, even though the dual-transporter math is suboptimal. The chemistry is well-documented — HBCD's low osmolality clears the stomach at concentrations conventional carbs can't, the 12:1 ratio is unconventional in this category, and the $5.24 retail per 100 g serving reflects bulk HBCD's ingredient cost.
What they do well
- Real-fruit flavor is better than the synthetic alternatives in this category. Some athletes can drink Skratch for hours where Maurten or SiS becomes intolerable.
- Sport Hydration's moderate carb dose (20 g/scoop) is honest about who it's for — all-day moderate intensity, not race-day peak fueling.
- Super High-Carb's HBCD bet is mechanistically defensible at very high concentrations.
- Brand voice is unusually transparent — Allen Lim's writing on the company blog frequently goes deeper into the formulation logic than competitors do.
- Sane electrolyte design across the line — sodium doses match real sweat losses for the use cases the products target.
Where they're overpriced
- Sport Hydration retails ~$1.00 per 20 g scoop — cane sugar plus dextrose plus electrolytes. Bulk replication costs under 25 cents.
- Super High-Carb is one Skratch product where DIY doesn't actually beat retail — bulk HBCD at canonical specialty pricing ($0.07/g per ingredient-sources.json) runs ~$6.40 per matched 100 g serving, more than Skratch's $5.24. A maltodextrin substitute is much cheaper (~$1/serving) but is a different drink — the low-osmolality chemistry is the entire reason to pay for HBCD.
- The 12:1 ratio of Super High-Carb leaves dual-transporter capacity on the table at the high intakes the product is marketed for. A 1:0.8 mix at the same total carb dose is more directly supported by the literature.
Pro & elite adoption
Skratch is widely used in pro cycling at the moderate-carb tier (Sport Hydration as a daily training drink) and across ultra-running. Adoption of Super High-Carb is growing among riders specifically seeking the HBCD-low-osmolality story, but the product is younger than the Maurten / SiS hydrogel/dual-transporter ecosystem.
Is Skratch Labs actually worth it?
Sport Hydration is one of the cleanest moderate-carb drinks on the market. If you train all day at conversational intensity and want a real-fruit-flavored drink that won't make you queasy by hour four, it's the right product. DIY is straightforward — sucrose + dextrose + sodium + a bit of citric acid + lemon peel — and lands at ~25 cents per serving versus $1.00 retail.
Super High-Carb is the more interesting bet. If you've personally GI'd out on conventional sugar drinks at >100 g/hr and want the lowest-osmolality option available, HBCD is doing real work. But the per-serving price is steep, the 12:1 ratio is suboptimal at very high intakes, and the DIY math is unusual for Carb Hack — a faithful HBCD copy isn't cheaper than retail at canonical specialty pricing, and the only cheap path swaps maltodextrin in and loses the low-osmolality chemistry. The Skratch DIY teardown documents both.
Or skip retail and DIY
The DIY teardowns below walk through the exact gram quantities, shopping list, and per-serving cost for a kitchen-mixed version of Skratch Labs's key products.
How does Skratch Labs stack up against rivals?
- Skratch Super High-Carb vs Tailwind High Carb — 100g Showdown · Skratch bets on Cluster Dextrin's ultra-low osmolality at 12:1 ratio. Tailwind bets on conventional dextrose+maltodextrin+fructose at 2:1. Same goal, different chemistry — and a meaningful price gap.
The ingredients in Skratch Labs's line
- Cluster Dextrin (HBCD) · An ultra-low-osmolality glucose polymer engineered for the highest carb intakes — premium price, real (but situational) benefit.
- Maltodextrin · The glucose-polymer workhorse in almost every high-carb sports drink — same energy as dextrose, far lower osmolality, nearly tasteless.
- Fructose · The GLUT5-transported sugar that lets you push past the 60 g/hr glucose ceiling — pair with maltodextrin at ~1:0.8 for the modern dual-transporter formula.
- Table Salt (Sodium Chloride) · The cheapest, most-bioavailable sodium source in your kitchen — pennies per gram and chemically identical to what's in any electrolyte tab.
- Sodium Citrate · A smoother-tasting sodium source than table salt — the alkalising buffer commercial drinks use to dose sodium without the bite.