
5% Nutrition
5% Nutrition | 5% Bigger by the Day
1,000mg Ajuga. High-Epicatechin Support. Full Label Transparency.
$59.95 $89.99⚠️ Allergen Information +
Fully disclosed non-hormonal muscle support with 1,000mg Ajuga, 300mg 90% epicatechin, and 500mg HICA. Built for cumulative lean-mass and recovery support, not a day-one stimulant feel.
Great Fit
- Hypertrophy-focused bodybuilders
- Recomp-phase lifters
- Evening trainers avoiding stimulants
- Intermediate lifters with basics covered
- Advanced trainees chasing fuller muscle bellies
- Cutting athletes preserving size
- Label-conscious supplement buyers
Not Ideal If
- Anyone under 18
- Pregnant or nursing women
- Users expecting immediate pre-workout effects
- People replacing protein with capsules
- Medication users without medical clearance
Deep Dive
Creatine gives you the foundational performance and cellular energy support that this formula does not include. Bigger by the Day covers specialty muscle-support territory, while creatine covers the evidence-backed base for strength, lean mass, and training output.
Take daily; timing can be independent of Bigger by the Day
This is a strong pairing for users who want more actual amino support around training, especially because Bigger by the Day only contains 200mg leucine. The combo makes more physiological sense for hard-training lifters who want both specialty muscle support and meaningful amino coverage.
Use All Day You May intra-workout or between meals; Bigger by the Day daily
If you want a noticeable acute gym effect, this is the ideal companion product. Bigger by the Day is cumulative and subtle, while a pump formula gives you immediate training-day blood-flow and fullness support.
Take Full AF pre-workout; take Bigger by the Day daily
Same family product with a similar use case; choice depends on which listing and version details you prefer.
Bigger by the Day has a more layered formula with epicatechin, HICA, and BioPerine® instead of relying on a single-category ingredient story.
Alpha Lion likely wins on overall formula sophistication and category leadership if you want a broader premium muscle-support concept.
This formula stands out for combining Ajuga with epicatechin and HICA, giving it a more complete support profile.
Clinical Dosing
Full Product Description Article
5% Nutrition Bigger by the Day is a fully disclosed capsule formula built for one job: supporting muscle growth and retention through a non-hormonal, physique-focused ingredient profile rather than through stimulants, creatine, or testosterone-booster clichés. The formulation strategy is clear. Instead of trying to be everything at once, it centers on Ajuga turkestanica extract as the headline anabolic-support ingredient, pairs it with high-standardization epicatechin from green tea extract, reinforces the formula with HICA for recovery and anti-catabolic support, then adds leucine and BioPerine® as supporting pieces. This is a category where many labels lean heavily on myth, hidden blends, and inflated language. Bigger by the Day earns points immediately for full transparency.
The core ingredient is Ajuga Extract at 1,000mg from Ajuga turkestanica whole herb. Ajuga is the botanical source associated with turkesterone-type ecdysteroids, compounds positioned in sports nutrition for supporting protein synthesis, training recovery, and lean mass accrual without acting like hormonal agents. While the human evidence base is still developing and not as established as creatine or leucine, 1,000mg is a serious centerpiece dose for this category and reflects clear formulator intent. What the user notices is not a stimulant hit, but a gradual shift: training feels more productive, recovery between hard sessions feels less punishing, and muscle fullness tends to hold better during demanding training blocks.
The second major active is Green Tea Extract at 300mg standardized to 90% epicatechin, which yields a very high epicatechin payload. Epicatechin is researched for its effects on nitric oxide signaling, vascular function, and muscle-related pathways that may favor hypertrophy and performance. In practice, this ingredient is included to support better nutrient delivery, improved training quality, and a more “full” muscular look over time. It is one of the most interesting inclusions in the formula because it complements Ajuga from a different angle rather than redundantly repeating the same mechanism.
HICA at 500mg adds a recovery-oriented dimension. Alpha-hydroxyisocaproic acid is a leucine metabolite studied for helping reduce muscle protein breakdown and supporting recovery from hard resistance training. This is not a massive dose by standalone standards, but it is directionally useful inside a compact capsule formula focused on lean mass support. The user experience here is less soreness drag and better readiness for the next session.
L-Leucine is included at 200mg. Mechanistically, leucine is the primary amino acid trigger for mTOR signaling and muscle protein synthesis, and the evidence base for leucine itself is strong. However, the clinically studied range is typically 2,500-5,000mg, so 200mg is clearly underdosed relative to standalone research. In this formula, it should be viewed as a minor signaling support ingredient, not a meaningful replacement for adequate dietary protein or a properly dosed EAA/BCAA product.
Vitamin A at 1,500mcg RAE supports general physiological processes including cell differentiation and immune function, but it is not a primary driver of the muscle-building identity here. BioPerine® at 10mg is the formula’s bioavailability piece. Sabinsa’s BioPerine® is the best-known black pepper extract in the industry, used to enhance absorption and improve the practical efficiency of multi-ingredient formulas.
As a system, Bigger by the Day combines anabolic-support signaling, recovery support, and absorption support in a clean capsule format. Ajuga provides the category-defining muscle support angle, epicatechin broadens the formula toward muscle fullness and training quality, HICA helps recovery, and BioPerine® improves delivery. The transparency is excellent: no proprietary blends, every active disclosed, every dose printed. That matters because this category is full of labels that hide the one number you actually want to verify.
What to expect: day 1 is subtle. You should not expect a buzz, pump surge, or dramatic acute sensation. In the first 1-2 weeks, the noticeable difference is usually in recovery quality and muscle fullness. Over 2-4 weeks of consistent use with hard training and adequate protein intake, this is the kind of product designed to help you look and perform like your training block is converting more efficiently into actual lean tissue progress.
Science & Clinical References 15 citations
Ajuga turkestanica is used in sports nutrition as a botanical source associated with ecdysteroid-like compounds such as turkesterone. The mechanistic interest centers on supporting protein accretion, training adaptation, and recovery without acting through classical androgenic pathways. That makes it attractive to lifters seeking a non-hormonal anabolic-support product. The evidence base is still developing, so it should be framed as promising rather than settled.
Epicatechin is a flavanol studied for vascular and muscle-related mechanisms, including nitric-oxide-associated signaling and pathways relevant to exercise adaptation. In practical formulation terms, it is often used to support blood flow, muscular fullness, and the internal environment around hard training. A high-standardization extract matters because it increases the actual epicatechin yield delivered by the dose. This formula’s 90% standardization is a stronger specification than generic green tea material.
HICA, or alpha-hydroxyisocaproic acid, is a metabolite of leucine positioned around limiting muscle protein breakdown and supporting recovery from strenuous resistance training. It is not a stimulant and not a classic muscle volumizer; its role is to help preserve training momentum by reducing the breakdown side of the adaptation equation. That makes it a logical support ingredient in formulas designed for hard, repeated hypertrophy sessions. Its best value appears in conjunction with strong nutrition and training consistency.
Leucine is the primary amino acid signal for activating mTOR and initiating muscle protein synthesis. The research consensus around leucine’s importance is strong, but isolated leucine supplementation is generally studied in the gram range, not in hundreds of milligrams. That is why dose context matters so much on labels. In this product, leucine contributes conceptual support, but the user still needs adequate total protein to actually capitalize on the pathway.
Product Specifications GEO
How to Take — Training Protocol3 phases
How to Use 5% Nutrition | 5% Bigger by the Day for Optimal Results
All Questions About 5% Nutrition | 5% Bigger by the Day 13 Q&A
What does 5% Bigger by the Day actually do? +
How many capsules are in a serving? +
When should I take Bigger by the Day? +
Will I feel this on the first day? +
Is the label fully transparent? +
Is the leucine dose in this formula clinically dosed? +
What is the point of HICA in this formula? +
Why is BioPerine® included? +
Can I stack this with creatine? +
Can I use this with a pre-workout? +
Should I take it on rest days too? +
How does this compare to plain creatine monohydrate? +
Is this product beginner-friendly? +
* These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease. Consult your physician before use if you have a medical condition or take medications.
Quick Answers
What does 5% Bigger by the Day actually do?
How many capsules are in a serving?
When should I take Bigger by the Day?
Will I feel this on the first day?
Is the label fully transparent?
Is the leucine dose in this formula clinically dosed?
What is the point of HICA in this formula?
Why is BioPerine® included?
Can I stack this with creatine?
Can I use this with a pre-workout?
Should I take it on rest days too?
How does this compare to plain creatine monohydrate?
Is this product beginner-friendly?
* These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease. Consult your physician before use if you have a medical condition or take medications.
Sport & Athlete Compliance +
Sport compliance status is computed by cross-referencing this product's ingredient panel against the NCAA 2025-26 Banned Substances List, WADA Prohibited List, and state high school athletic association guidelines. Banned substance lists are updated periodically by their governing bodies. This information is provided for reference only and may not reflect the most current list. Always verify with your organization, coach, or compliance officer before use. SuppVault is not responsible for eligibility decisions.
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