Sustain Alpha Cream: Honest Evidence Review and Stack Placement Relative to Better-Evidenced Options

Medically reviewed by Ivan Kokhno, MD — Research analysis by Alex Eriksson · Updated May 2026

Product Name: Sustain Alpha by Iconic Formulations

Review Date: January 2019

Rating: 5 out of 5

Sustain Alpha cream is manufactured by Iconic Formulations. Their products have a focus on improving hormone balance and testosterone levels for fat loss and/or muscle gain. Other products include Neuro DHEA, Icogenin, Toco-9, and Dermacrine.

Also known as 3,5,4’-trihydroxy-trans-stilbene, it is a polyphenol found in high amount in the skin of a grape. The fruit produces it to protect itself from parasites and toxins. Other foods that contain significant amounts of resveratrol include blueberries, cranberries, dark chocolate, Japanese knotweed, peanuts, pistachios, and soy.

Resveratrol activates a compound in your body known as SIRT1 or Sirtuin 1. This compound is an enzyme that plays a variety of functions in the different interactions happening in the brain. One of these interactions includes the HPG (hypothalamic-pituitary-gonadal) axis, which is responsible for exhibiting sexual characteristics and reproductive functions in the body.

Without SIRT1, you have lower secretion of Gonadotropin-releasing hormones (GnRH). This causes a drop in your follicle-stimulating hormone (FSH) and luteinizing hormone (LH) levels. If you are familiar with these hormones, you would know that a decrease in these hormones translates to lower testosterone production in your gonads.

Resveratrol also inhibits the aromatase from interacting with the testosterone in your blood. This prevents the conversion of testosterone into estradiol (the estrogen hormone in men). This does not mean that your body cannot produce the necessary amounts of estrogen hormone. The aromatase inhibiting action of resveratrol is just enough to prevent estradiol from causing a hormone imbalance.

Aside from that, resveratrol also promotes muscle growth in two ways. First, it increases your body’s response to exercise by building more muscle-building pathways built during recovery. Second, it prevents muscle protein degradation during catabolic metabolism and when the body experiences excessive inflammation.

It also increases the metabolism of fat and carbohydrates in your body in response to exercise. This causes your body to have a higher metabolic rate during exercise. With increased muscle growth, this increase in metabolic rate extends to while you are at rest.

In terms of general health, various studies have found resveratrol to be beneficial in the following:

• Bone health by causing stem cells to develop bone-building cells and increasing bone mineralization
• Cancer prevention by regulating the cancer enzyme topoisomerase II enzyme and controlling metastasis
• Liver health by improving bile flow and preventing blood poisoning during bouts of serious infections
• Cardiovascular health by increasing nitric oxide levels, increasing the regeneration rate of your blood vessels, and helping the body maintain a healthy blood pressure
• Digestive system by increasing beneficial gut bacteria and preventing harmful bacteria from causing harm

Also known as alpha-naphthoflavone or 7,8-benzoflavone, it is a synthetic flavonoid created for a variety of purposes. One of which is the inhibition of aromatase in the body.

As mentioned before, aromatization causes the conversion of serum testosterone into estradiol. Benzoflavone stops this process and has a greater potency compared to aromatase inhibitors such as beta-naphtholflavone, catechin, equol, daidzein, and genistein.

Benzoflavone also blocks and activates the aryl hydrocarbon receptors since it is an agonist and antagonist of said receptors. The said receptors are responsible for the activation of the body’s response to to stress.

With benzoflavone, this response is at a more controlled manner. The muscle responds appropriately through stimuli and prompts muscle growth. But, the response does not get to the point of excessive cortisol levels that lead to muscle wasting.

Sustain Alpha provides you a way to naturally increase the testosterone levels of your body. This amount can reach up to a 50 percent increase in your testosterone. This makes it a great alternative from synthetic steroids that can cause infertility and high levels of estrogen.

Even if you are already on a testosterone replacement therapy, the use of Alpha Sustain can still be of great benefit. Resveratrol and benzoflavone can prevent the inevitable spike of estrogen when the high testosterone levels prompts aromatization.

This is also the case when one is on their post cycle therapy or quitting the use of anabolic steroids. In this way, they do not have to lose their muscle gains from their steroid cycle.

Sustain Alpha can also be useful for those who have high body fat or type-2 diabetes. These individuals have higher production of estradiol. The resveratrol and benzoflavone can moderate the higher than normal aromatization that causes increased estrogen.

Furthermore, its resveratrol content can help in fat loss and increasing insulin sensitivity by improving your metabolism and boosting muscle gain.

Sustain Alpha requires a clean and dry skin on the area of application. Application size will vary depending on your body weight. The area of application should be free of other transdermal products. For best results, avoid bathing or swimming for, at least, five hours after application.

The ideal area of application is anywhere between below the chest and above the knees. You can apply it directly on your genitals four to six hours before sexual intercourse if you are looking to enhance sexual function. For best results, it is advised to use the product for seven consecutive days.

Sustain Alpha provides your body an easily absorbed way to boost testosterone and control estrogen. If you are looking to optimize your muscle gains or fat loss, it can definitely help you achieve your fitness goals faster. The best part is, unlike synthetic steroids, it is all natural and you are not forcing your body to do something unnatural.

For most men interested in T-supportive interventions, the better-evidenced options are oral and have far more direct human RCT data:

• Foundation: Tongkat Ali 200–400 mg/day for testosterone substrate — substantially stronger evidence than topical multi-ingredient creams.
• Direct DHT: Butea Superba for downstream signal.
• Cortisol management: Ashwagandha 600 mg/day KSM-66.
• For PCT after suppressive compounds: prescription HCG, clomiphene, or tamoxifen under medical supervision have established protocols. Discuss with a hormone-specialist physician.
• Foundational vitamins: Anabolic Octane (D-K-A-E) for vitamin D + K2 + A + E.
• Lifestyle non-negotiables: 3–5x weekly resistance training, body fat 8–15%, 7–9 hours sleep, alcohol limit.

For deeper protocols, see ashwagandha and testosterone, testosterone-boosting foods, best supplements for men over 40, natural steroid alternatives, ecdysterone, and building muscle after 40.

• Tongkat Ali (Eurycoma longifolia) — testosterone substrate herb with substantially stronger evidence than Sustain Alpha.
• Butea Superba — direct DHT and erection-quality support.
• Ashwagandha — cortisol modulation; the Wankhede 2015 T+strength data.
• Anabolic Octane (D-K-A-E) — foundational T-supportive cofactors.

Q: Does Sustain Alpha really raise testosterone?
A: Direct human RCT evidence for the formulation is limited; product-specific testimonials drive most claims. Some individual ingredients (forskolin, fadogia agrestis) have early-stage research suggesting T-supportive activity, but none have RCT evidence comparable to Tongkat Ali or ashwagandha. The combination-product nature makes attribution difficult.

Q: Is Sustain Alpha effective for PCT?
A: Anecdotal use in SARM-recovery communities is documented, but rigorous evidence is absent. For PCT after suppressive compounds (anabolic steroids, SARMs), the evidence-based protocols use prescription HCG, clomiphene, or tamoxifen under medical supervision. Topical herbal creams may help marginally, but they're not the primary intervention; the underlying problem (HPG axis suppression) is best addressed pharmacologically.

Q: How do you apply Sustain Alpha?
A: Standard application: 1–2 ml twice daily applied to thin-skin areas (inner forearms, abdomen, inner thighs). Massage in until absorbed. Avoid washing the area for at least 1 hour post-application. Effect onset varies; product manufacturers claim subjective effects within 1–2 weeks of consistent use.

Q: Are there safety concerns with Sustain Alpha?
A: Topical absorption of multi-ingredient herbal creams creates unpredictable interactions. Skin irritation, mild allergic reactions, and unpredictable hormonal effects are possible. The forskolin and fadogia ingredients have limited long-term safety data. Avoid in pregnancy/breastfeeding, men with prostate cancer or hormone-sensitive conditions, and discuss with a prescriber if on hormonal medications.

Q: Sustain Alpha vs Tongkat Ali for T support?
A: Tongkat Ali wins decisively on evidence quality. Multiple human RCTs show measurable T elevation with Tongkat Ali at 200–400 mg/day; Sustain Alpha relies on combination claims and individual-ingredient extrapolation. For natural T support without prescription pharmacology, oral Tongkat Ali is the foundation; Sustain Alpha is a niche specialised product for specific PCT applications.