5% Nutrition | 5% Bigger by the Day

5% Nutrition Bigger by the Day is a capsule-based hormone support and physique-support formula built around one central idea: give dedicated lifters a fully disclosed, non-proprietary anabolic-support stack centered on Ajuga turkestanica, then reinforce it with anti-catabolic and nutrient-partitioning style support ingredients. This is not a testosterone booster in the classic tribulus-fenugreek sense, and it is not a stimulant-heavy pre-workout. It is a niche body-composition formula designed for users chasing better training adaptation, improved muscle retention, and a more “hard, full” look over time.

The headline ingredient is Ajuga Extract at 1,000mg from Ajuga turkestanica whole herb. Ajuga is used primarily as a source of phytoecdysteroid compounds, most notably turkesterone, which has gained attention for its potential role in supporting protein synthesis and muscle recovery pathways without acting like a hormonal drug. The important scientific caveat is honesty: Ajuga/turkesterone is mechanistically interesting, but the human evidence base is still developing. That means this 1,000mg dose is meaningful from a formulation standpoint, yet expectations should stay grounded. This is the ingredient most likely to define the product experience over several weeks, not overnight.

HICA, or alpha-hydroxyisocaproic acid, is included at 500mg. HICA is a leucine metabolite best known for anti-catabolic positioning and recovery support. Its practical role here is to help reduce muscle breakdown and support harder repeat training sessions. The dose is useful, though not aggressive by standalone-product standards. You likely will not “feel” HICA acutely, but it contributes to the product’s recovery-oriented backbone.

Green Tea Extract at 300mg standardized to 90% epicatechin is one of the more interesting pieces of this formula. Epicatechin is often positioned for myostatin-related interest, nitric oxide support, and muscle quality effects. The 300mg dose, especially at this high standardization, gives the formula a legitimate body-composition and performance-support angle that many competitors in this category simply do not provide. This is also one of the ingredients removed on some marketplace listings, which matters because it changes the product’s character substantially.

L-Leucine is the primary amino acid trigger for muscle protein synthesis because it directly activates the mTOR pathway. That mechanism is extremely well established in sports nutrition, and the clinical range is typically 2,500-5,000mg. Here, however, the dose is only 200mg. That is far below the researched standalone range, so it should be viewed as a supporting signal rather than a true muscle protein synthesis driver. In other words, the mechanism is elite; the dose is not.

Vitamin A at 1,500mcg RAE as retinyl palmitate is not a muscle-building ingredient, but it does support normal cellular differentiation, immune function, and endocrine health. Its inclusion gives the product a broader hormone-support identity. BioPerine® black pepper extract at 10mg rounds out the formula as the absorption enhancer. Sabinsa’s BioPerine® is the best-known black pepper extract in the category and is used to improve the bioavailability of co-administered compounds.

As a system, the formula makes sense: Ajuga provides the anabolic-support centerpiece, HICA helps protect against breakdown, epicatechin adds a physique/performance layer, and BioPerine® supports uptake. The transparency here is a real strength. There are no proprietary blends, and every active dose is disclosed, which is still better than much of the hormone-support category. Day 1, most users will notice very little acutely because this is not a stimulant formula. Over 2-4 weeks, the realistic expectation is better training confidence, improved recovery continuity, and potentially a denser, more performance-ready feel when combined with sufficient calories, protein, and progressive overload.

How to Use 5% Nutrition | 5% Bigger by the Day for Optimal Results