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Energy & Focus · Review

Isotonix Essentials Turn Up Review

24 mg of natural caffeine from guarana and yerba mate, plus B12, CoQ10 and four amino acids — rated 4.8 stars across 99 reviews, the highest-rated product in this whole roundup. Here’s what’s really in the packet.

CM

By Claire Morrison · Inspire Review TeamUpdated July 2026· 7 min read· ✓ Fact-checked
Isotonix Essentials Turn Up box on a kitchen counter
★ Inspire pick

4.5

★★★★★

our rating

Best for anyone who wants a lighter, steadier alternative to a large coffee or a high-caffeine energy drink for a midday focus boost.

What we liked

  • Just 24 mg of caffeine per serving (about a quarter of a cup of coffee) from whole-food sources (guarana, yerba mate) rather than synthetic caffeine anhydrous
  • B12 as methylcobalamin, the active form, plus a 6-B-vitamin complex
  • Includes CoQ10 and four amino acids (taurine, tyrosine, phenylalanine, glycine) alongside the energy blend
  • The best-reviewed product in this roundup: 4.8 stars across 99 on-site reviews

What to know

  • 24 mg of caffeine is disclosed and modest, but it’s still a stimulant — count it if you’re tracking total daily caffeine
  • $83.95 for 30 packets is the most expensive product in this batch
  • Only confirmed sold through the US, Taiwan, and Hong Kong Isotonix stores
  • Contains mangosteen and green tea extract, so check for any personal sensitivities before daily use
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Key takeaways

  • Caffeine comes from guarana and yerba mate, totaling 24 mg per serving — disclosed directly on the label, about a quarter of a typical cup of coffee.
  • Also includes CoQ10, methylcobalamin B12, five other B vitamins, vitamin C, and four amino acids (taurine, L-tyrosine, L-phenylalanine, glycine).
  • It’s a powder packet: entire packet in 8 fl oz water, once daily, empty stomach for best absorption.
  • The highest-rated product in this article batch: 4.8 stars across 99 on-site reviews.

What’s actually in it

This is built as a lighter, more sustained-release alternative to a large coffee or energy drink — a modest, disclosed caffeine dose stacked with B vitamins, amino acids and two “superfruit” extracts.

24mg
Guarana & Yerba Mate (24 mg caffeine)
Two herbal caffeine sources, combined for a disclosed 24 mg per serving — roughly a quarter of a typical 95 mg cup of coffee.
B12
Methylcobalamin B12 + 5 other B vitamins
The neurologically active form of B12, included for cellular energy production and nervous-system support.
CoQ10
Coenzyme Q10
Supports mitochondrial energy production; included here as one part of a blend, not disclosed at a specific milligram amount for this SKU.
AA
Taurine, L-Tyrosine, L-Phenylalanine, Glycine
Four amino acids the company credits with supporting mental energy, cognitive function, and central nervous system maintenance.

How it’s taken: pour the entire packet into a cup, add 8 fl oz of water, stir until dissolved, once daily, ideally on an empty stomach. 30 packets per box.

How much caffeine, really

This is worth being precise about, since “energy supplement” often implies more stimulant than is actually in the packet. The label discloses 24 mg of caffeine per serving from guarana and yerba mate combined — for comparison, an 8 oz cup of brewed coffee typically runs 80–100 mg, so this is roughly a quarter of that. It’s a real, honestly disclosed number, not a proprietary-blend guessing game.

Why this matters: if you’re also drinking coffee, tea, or another energy product the same day, this 24 mg still counts toward your total daily intake — it’s modest, not zero.

What reviewers actually say

At 4.8 stars across 99 reviews, this is the best-reviewed product in this batch, and the specific language reviewers use is consistent: “no jitters,” “no crash,” and describing it as usable even by people who are normally sensitive to coffee. Multiple reviews specifically contrast it favorably against energy drinks for not causing an afternoon crash.

Frequently asked questions

How much caffeine is actually in Turn Up?−
24 mg per serving, from guarana and yerba mate combined — disclosed directly on the label, about a quarter of a typical cup of coffee.
Does it contain CoQ10, like the standalone Isotonix Coenzyme Q10 product?+
Yes, CoQ10 is one ingredient in this blend, but the amount isn’t disclosed at a specific milligram figure for this SKU. If you want a CoQ10-focused product at a stated dose, see our separate Isotonix Coenzyme Q10 review.
When should I take it?+
Once daily, ideally on an empty stomach. Reviewers commonly describe taking it in the morning or early afternoon for a focus boost.
Where can I actually buy it?+
Confirmed sold through the US, Taiwan, and Hong Kong Isotonix storefronts.
Is it safe alongside coffee or tea?+
The 24 mg caffeine dose is modest, but still counts toward your daily total. If you’re caffeine-sensitive or already consuming other caffeinated products, factor this in or ask your doctor.
4.5
out of 5
★★★★★
Our verdict

“The best-reviewed product in this batch, and the caffeine math is honestly disclosed rather than hidden in a proprietary blend.”

24 mg of caffeine is a genuinely light, clearly stated dose, and the B12/CoQ10/amino-acid stack gives it a real rationale beyond just stimulant. At $83.95 for 30 servings it’s a premium price for what amounts to a modest-caffeine energy packet, but the 4.8-star, 99-review track record is hard to argue with.

How we review: formula research, published evidence, years of stocking and shipping these products, cross-checked against NIH and Examine. No payment accepted for positive reviews.
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Related reading

  • Isotonix Turn Down Review
    ReviewIsotonix Turn Down ReviewL-tryptophan and magnesium for a caffeine-free wind-down.✓ Fact-checked·7 min read·Updated July 2026

  • Isotonix Coenzyme Q10 Review
    ReviewIsotonix Coenzyme Q10 ReviewA CoQ10-focused formula for heart and cellular energy.✓ Fact-checked·7 min read·Updated July 2026

  • Isotonix Acai Advanced Energy Formula Review
    ReviewIsotonix Acai Advanced Energy Formula ReviewA caffeinated antioxidant energy blend with a real warning label worth reading.✓ Fact-checked·7 min read·Updated July 2026

Sources

  1. Guarana and its caffeine content: Examine.com on Guarana.
  2. CoQ10 research: Examine.com on Coenzyme Q10.
  3. Daily caffeine intake guidance: FDA guidance on caffeine intake.
Reviewed by the Inspire Distribution team. These statements have not been evaluated by the FDA and are not intended to diagnose, treat, cure or prevent any disease.
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