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Testosterone is the drive of every guy and every athlete. Therefore, a sufficiently high level of this hormone is crucial when engaging in physical activity. Indeed, you also know that there are specific reactions between testosterone and estrogen in the body. Estrogens also play an essential role, but their too-high levels can negatively affect testosterone synthesis and concentration. This is a massive problem for those using advanced supplementation, which can increase estrogen levels. Fortunately, you can now effectively protect your body from the adverse effects of too much estrogen. The new Estro Guard formula from the well-known company Core Labs will help you do this.

This is a preparation with a double action. On the one hand, it supports hormonal balance and thus helps to maintain the right balance between testosterone and estrogen. In this respect, the preparation can be an integral part of PCT therapy. On the other hand, Estro Guard also acts as an effective testosterone booster, and its ingredients can raise this hormone's concentration and increase libido. All this to get your body working at top speed.
Here are the most essential active ingredients contained in these capsules:

Estro Inhibit System



  • ATD (1,4,6-Androstatriene-3,17-dione)The compound known as ATD is a potent aromatase inhibitor. By inhibiting the activity of this enzyme, ATD can lead directly to a reduction in estrogen concentrations in the body. So, this is an essential aspect for people who struggle with the problem of too-high estrogen.


Test & Libido Booster



  • Epimedium Extract (60% Icarrin)Plants known as epimedium contain numerous beneficial active compounds. One is icariin, an all-natural inhibitor of phosphodiesterase type 5. Such compounds are also used to treat erectile dysfunction. Thus, they can significantly support sexual performance.

  • Bulbine NatalensisThis African shrub is used in local folk medicine as an aphrodisiac. Modern research has confirmed that its compounds can raise testosterone levels.

  • Saw Palmetto ExtractSabal palm extracts can raise free testosterone levels and prevent prostatic hypertrophy.

  • Mucuna Pruriensthe L-dopa contained in it has a nootropic effect and improves mood. Thus, it can also indirectly increase libido.

  • NMDA (N-Methyl-D-Aspartic Acid)This acid has an essential effect on the nervous system. It can increase neuroplasticity and improve memory and mood.

  • Grape Seed ExtractAmong the many beneficial properties of grape seeds, their ability to improve blood flow is worth noting. Such a feature can directly affect improving sexual performance and enhancing erections.

  • NaringeninThis compound, on the one hand, lowers blood pressure and, on the other, reduces the level of unfavourable cholesterol. As a result, it can help improve the condition of the circulatory system.

  • JalapenoThe capsaicin in jalapeno peppers can improve heart function and speed up metabolism.

  • Piperine 95%Piperine is the active ingredient contained in black pepper. Although it has numerous health-promoting properties, supplement manufacturers use it for different purposes. Namely, piperine can increase other compounds’ assimilation levels, making their action more effective.

  • Vitamin D3Vitamin D3 is one of the most essential compounds in testosterone synthesis. All the more reason for concern that a large part of the population is deficient in this vitamin. Supplementing its levels will, therefore, be an essential step in raising testosterone levels and improving health and vitality in general.


Dosage:


The high action potential of the described active ingredients causes the manufacturer to recommend using only one capsule of Estro Guard daily.

Disclaimer


This product is a dietary supplement and should not be used as a substitute for a varied diet. Do not exceed the recommended daily dose. Keep out of reach of children. If you are pregnant, nursing, taking medication, or have a medical condition, consult your healthcare professional before use. This product contains Aphrodyne and may cause side effects such as increased heart rate, anxiety, or elevated blood pressure. Use with caution and discontinue use if any adverse reactions occur. Store in a cool, dry place away from direct sunlight. The Food and Drug Administration or any other governmental authority has not evaluated the statements made here. This product is not intended to diagnose, treat, cure, or prevent any disease.

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Core Labs Estro Guard is a testosterone and oestrogen management supplement designed to support optimal testosterone levels while controlling oestrogen. It uses an Estro Inhibit System to inhibit aromatase activity and maintain a favourable hormonal environment. Each bottle contains 45 capsules.

ATD is a potent aromatase inhibitor included in Core Labs Estro Guard. By inhibiting aromatase enzyme activity, ATD blocks the conversion of testosterone to oestrogen, directly supporting testosterone levels and reducing oestrogen-related side effects.

Key benefits include elevated free testosterone levels, controlled oestrogen through aromatase inhibition, reduced water retention and gynecomastia risk, improved body composition and muscle hardness, and comprehensive hormonal balance support on and off cycle.

Core Labs Estro Guard should be taken as directed on the product label. It can be used on-cycle to manage oestrogen during a prohormone or SARM cycle, or post-cycle as part of a PCT protocol. Do not exceed recommended doses.

Estro Guard is designed for athletes and bodybuilders who need to manage oestrogen levels during or after an advanced supplement cycle, or anyone seeking to optimise their testosterone-to-oestrogen ratio for better body composition and performance.

Estro Guard is primarily relevant for users actively managing oestrogen during or after a cycle. Beginners not using aromatising compounds may not require aromatase inhibition. Consult a healthcare professional if unsure about your hormonal needs.

Yes. Estro Guard is commonly used during PCT to manage oestrogen rebound that occurs when finishing a prohormone or SARM cycle. Controlling oestrogen during PCT helps protect gains and supports natural testosterone recovery.

Core Labs Estro Guard features ATD (1,4,6-Androstatriene-3,17-dione) as the primary aromatase-inhibiting compound within the Estro Inhibit System. Additional ingredients are listed on the product label and should be reviewed before use.

Aromatase inhibitors can over-suppress oestrogen if used incorrectly, negatively affecting joint health, lipid profiles, and libido. Use only as directed and monitor oestrogen levels with bloodwork. Consult a healthcare professional if you have pre-existing hormonal conditions.

Core Labs Estro Guard is available through Cross The Limits, an authorised UK retailer. Orders placed before 4pm are dispatched the same day, with free UK shipping on orders over £89.

Core Labs

Core Labs

Cross the Limits offers Core Labs supplements, a trusted name in the fitness world known for innovative dietary supplements and advanced training-oriented nutrition. This range delivers high-performance products tailored for athletes at every level, focusing on efficiency and effective goal achievement. By choosing Core Labs at Cross the Limits, fitness enthusiasts gain access to professional-grade formulations designed to maximize physical potential.