Afterdark | Estrozole | 90 CapsulesAfterdark
- SuppVault Score
- 65/100
- Per serving
- $1.5

Afterdark
Multi-pathway estrogen support with liver, mineral, and DHT coverage.
$44.95 $69.99$1.49/servingAfterdark Estrozole is a stimulant-free hormone support formula built for estrogen metabolism, conversion control, and clearance. It pairs 200mg DIM with 100mg I3C, aromatase-targeted compounds, and liver-antioxidant support for a broader approach than basic single-pathway products.
Afterdark publishes test results from independent third-party labs. Svpplements links to the manufacturer’s data — we don’t test products ourselves.
Discount applied automatically in cart.
Estrozole focuses on hormone metabolism and support pathways, not ATP regeneration or strength output directly. Adding standalone creatine covers phosphocreatine replenishment and complements this formula by supporting performance while Estrozole handles the endocrine-support side.
Take creatine daily at any convenient time; it does not need to be taken with Estrozole.
Fish oil complements this formula through systemic anti-inflammatory support and broader cardiometabolic health. That pairs well with Estrozole’s antioxidant and liver-support architecture, especially during harder training blocks.
Take with meals, ideally alongside Estrozole or another meal containing fat.
Estrozole is not a recovery macronutrient formula, so protein fills a completely different but essential role by supporting muscle protein synthesis and repair. This is the cleanest way to separate hormonal support from training nutrition basics.
Use post-workout or anytime daily protein intake is low.
While Estrozole includes magnesium glycinate, the dose is only 20mg, which is well below clinically relevant magnesium intakes. A separate magnesium product can complete the mineral-support side more effectively, especially for sleep quality, muscle relaxation, and vitamin D utilization.
Take later in the day or before bed, separate from Estrozole if preferred.
A well-built multivitamin can round out micronutrient gaps, but choose one that does not heavily overlap with Estrozole’s 30mg zinc dose. This helps support overall nutritional status without accidentally pushing zinc intake too high on a daily basis.
Take with another meal if not using it with Estrozole.
Estrozole has a more specialized estrogen-metabolism and clearance focus than a general testosterone booster.
IsodrolXR may appeal more to users prioritizing harder-hitting category effects over pathway balance.
Core Alpha is generally stronger on transparency and overall category polish.
Estrozole stands out with broader antioxidant and liver-support coverage around hormone pathways.
Side-by-side against the closest competitors. Score reflects clinical dosing, transparency, and testing.
Afterdark | Estrozole | 90 CapsulesAfterdark
Afterdark | XYO-Test | 100 CapsulesAfterdark
Estrozole has a more specialized estrogen-metabolism and clearance focus than a general testosterone booster.
Compare side-by-side →
Afterdark | AD IsodrolXRAfterdark
IsodrolXR may appeal more to users prioritizing harder-hitting category effects over pathway balance.
Compare side-by-side →
Core Nutritionals | Alpha | 56 CapsulesCore Nutritionals
Core Alpha is generally stronger on transparency and overall category polish.
Compare side-by-side →Comparison data combines live storefront pricing with our SuppVault analysis. Competitor scores reflect public-label data; manufacturer-side changes may not be reflected in real time.
Afterdark Estrozole is a multi-pathway hormone support formula built around one central idea: don’t rely on a single 'estrogen blocker' ingredient and call it a day. Instead, this formula combines estrogen metabolism support, aromatase-targeted compounds, DHT-conscious botanicals, and liver antioxidant support into a single 3-capsule serving. That makes it more sophisticated than the average category product, which usually leans too hard on one or two headline ingredients without supporting the clearance, protection, and systemic balance pieces around them.
The most important disclosed actives are DIM at 200mg and Indole-3-Carbinol at 100mg. DIM is the better-known cruciferous compound for supporting favorable estrogen metabolism, while I3C is its upstream precursor with additional biological activity of its own. Mechanistically, these compounds influence estrogen metabolism through pathways involving aryl hydrocarbon receptor signaling and downstream effects on how estrogens are processed. In plain terms, they’re here to help shift estrogen handling in a more favorable direction rather than simply trying to suppress estrogen indiscriminately. The 200mg DIM dose is in a useful supplemental range, and pairing it with 100mg I3C makes formulation sense because I3C can convert endogenously to DIM while also contributing separate activity.
The aromatase-focused side is reinforced by abieta-8,11,13-trien-18-oic acid at 50mg and androsta-3,5-dien-7,17-dione at 50mg. These are more specialized category ingredients aimed at helping modulate the conversion of androgens into estrogens. This is what gives Estrozole its more aggressive positioning versus a simple DIM-only formula.
The mineral backbone is stronger than many hormone products. Zinc glycinate at 30mg is a serious inclusion, not a fairy-dust dose. Zinc is involved in androgen physiology, immune function, and enzyme systems relevant to hormone balance. Glycinate is also a well-absorbed chelated form. Selenium as L-selenomethionine at 200mcg supports antioxidant enzymes and thyroid-relevant selenoproteins, while vitamin D3 at 1000 IU adds a baseline endocrine and immune support layer. Magnesium glycinate is a high-quality form, and while 20mg is far below the 300-500mg daily amounts commonly used in magnesium research, it still complements the D3 inclusion mechanistically because magnesium is required for vitamin D activation.
The liver and antioxidant section is one of the formula’s biggest strengths. Steam-treated milk thistle at 500mg gives this product a real hepatic support anchor. N-acetyl L-cystine at 400mg is clearly intended as a glutathione-support precursor, and paired with 100mg glutathione it creates a smart antioxidant redundancy: one ingredient helps your body build more glutathione, while the other directly supplies it. That matters in a category where users often want support during physiologically stressful training blocks or more advanced supplementation phases.
The formula does lose some transparency once it reaches the proprietary blend ingredients. Saw palmetto, mucuna pruriens, stinging nettle root, L-lysine, 5-HTP, and grape seed extract are included, but their exact doses are not disclosed. That means the ingredient selection is promising—especially saw palmetto and nettle for DHT-conscious support, and grape seed extract for antioxidant and vascular support—but their contribution cannot be fully benchmarked against clinical literature. That is the fairest way to read this label.
What to expect: this is not a 'feel it in 20 minutes' product. Day 1 is mostly about knowing you’ve started a structured hormone-support protocol. Over 2-4 weeks, consistent users are more likely to notice the intended benefits in overall balance: a more dialed-in feeling during training phases where estrogen management matters, alongside better confidence in the formula’s detox and protective support systems. Estrozole stands out because it doesn’t treat hormone support as one ingredient—it treats it as a network.
DIM is a cruciferous-derived metabolite that influences estrogen biotransformation and downstream signaling rather than acting as a simple blocker. Mechanistically, it appears to modulate pathways involved in phase I metabolism and receptor-mediated responses, helping shift how estrogens are processed. Its practical use in sports nutrition is usually centered on supporting a more favorable metabolism profile during periods of endocrine stress. Dose context matters because crystalline and enhanced-absorption forms may not behave identically.
Indole-3-carbinol functions as an upstream precursor that can condense into DIM and related compounds in the acidic gastric environment. This gives it a slightly different mechanistic role than simply duplicating DIM, because it broadens the cruciferous-metabolite exposure profile. In a formula, combining I3C with DIM can create a more layered approach to estrogen-metabolism support. The evidence base is still emerging, so formulation logic currently exceeds certainty of outcome.
Aromatase-targeted compounds are included to address the conversion side of hormone balance rather than focusing only on downstream clearance. This is important because estrogen support in physique contexts often involves both metabolism and conversion control. A multi-pathway design may be more coherent than relying on a single headline ingredient. However, overall user response can vary substantially based on training stress, body composition, and baseline endocrine status.
Milk thistle, N-acetyl L-cysteine, and glutathione create a hepatic and redox-support layer that is often missing from simpler hormone products. NAC serves as a precursor for intracellular glutathione synthesis, while supplemental glutathione contributes directly to antioxidant defense. Milk thistle is commonly used to support hepatocellular resilience and bile-related function. In theory, this support layer matters because hormone metabolites must be processed and cleared efficiently, not just altered upstream.
Verified athletes can view NCAA, WADA, and high-school compliance status for this product.
* 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.
Drop your number and our team will instantly text you.
Our team is on it. Check your texts — real advice, real fast.
Secure sign in
Svpplements uses Shopify Customer Accounts for protected login, order history, and account data.