1 Bottle CitruSlim® (Subscription) - Appetite Suppressant. Cancel anytime

What's actually in it

CitruSlim® is built around two extracts. The first is Bergamonte, a full-spectrum polyphenolic extract from Italian citrus bergamot — the same Calabrian bergamot that gives Earl Grey its signature edge. The polyphenols in bergamot have been studied for their effect on lipid metabolism and blood glucose regulation, with a meaningful body of peer-reviewed research supporting their use for metabolic wellness. That's a more credible foundation than most supplements in this category can point to.

The second ingredient is Adapticort Tongkat Ali, a wild-harvested extract from Malaysian rainforest. Tongkat ali (Eurycoma longifolia) has been researched primarily for its effect on cortisol modulation and stress-related hormonal balance. The cortisol angle is worth noting: chronic stress keeps cortisol elevated, which in turn drives hunger and promotes fat storage around the midsection. Addressing that pathway isn't the same as suppressing appetite directly, but it's a legitimate mechanism.

What it claims — and where to set expectations

The label language covers hunger hormone modulation, cardiovascular support, metabolic wellness, and cortisol balance. These are framed carefully — and they need to be, because like every supplement sold in the US, CitruSlim® carries the standard FDA disclaimer: not evaluated, not intended to diagnose or treat anything.

We'd read the claims as follows: bergamot extract has a reasonably good track record for supporting healthy cholesterol and blood sugar levels; tongkat ali has decent evidence for reducing stress-hormone load. Neither ingredient is a magic weight-loss switch. If you're hoping for a product that burns fat while you sleep, this isn't that — and frankly, nothing is.

The subscription model

At $44.95 per bottle on subscription, this sits in the middle tier of the supplement market. The "cancel anytime" framing is standard, though it's worth going into any subscription supplement with a plan: give it a consistent trial (most adaptogen research uses 8–12 week windows), assess honestly, then decide.

One detail we'd want more transparency on: the actual milligram dosages per serving aren't surfaced in the product description. With polyphenol-based supplements especially, dose matters — studies on bergamot extract typically use standardized amounts. We'd recommend checking the label or contacting NHR Science directly before purchasing if dosage is a deciding factor for you.

The NHR Science angle

NHR Science markets itself as a science-first brand. The decision to combine these two specific extracts — rather than loading the formula with a dozen trending ingredients at trace doses — suggests at least some formulation discipline. Simpler formulas are generally easier to evaluate and less likely to dilute the actives you're actually paying for.

Bottom line

For someone specifically interested in bergamot polyphenols for metabolic and cardiovascular support, CitruSlim® is a credible option. Treat it as a long-game metabolic supplement rather than a hunger off-switch, and your expectations will be aligned with what it can realistically deliver.