Summary: Most fertility supplements have the right ingredients on the label. The problem is the form. Zinc oxide instead of citrate. CoQ10 without Black Pepper™. Your body flushes most of it. We tested 37 to find the ones that actually absorb.

You've been taking zinc. CoQ10. Maybe a "fertility blend" from Amazon with 4,000 reviews and a proprietary blend on the label. You've been consistent. Nothing's changed.
Here is what most people do not know: the supplement industry sells the cheapest forms of every ingredient knowing your body barely absorbs them.
Zinc oxide absorbs at roughly 12%. That means if you take 30mg, your body might use 3.6mg. The rest goes straight through you. Wasted.
CoQ10 without Black Pepper™ loses up to 30% of its absorption. You're swallowing 100mg and your body is getting maybe 70mg. If your bottle even has 100mg, which most don't.
And if the label says "proprietary blend," you have no way of knowing how much of anything is actually inside. It could be 90% rice flour and 10% active ingredients. You'd never know. That's the point.
His "fertility blend" from Amazon with a proprietary blend and 4,000 reviews was mostly rice flour and marketing.
That is why we personally tested 37 of the most popular male fertility supplements to find one that uses the right compounds, in the right forms, at the right doses, with every amount printed on the label.
Zinc citrate absorbs. Zinc oxide doesn't. The form decides whether it works or gets flushed.
No proprietary blends. If you can't see how much of each ingredient you're getting, you can't trust the bottle.
CoQ10 is the top motility nutrient. Without Black Pepper™, your body absorbs significantly less of it.
10mg of CoQ10 when the studies used 200 to 400mg is not a clinical dose. It's a label claim.
All three sperm parameters, not just one. Most bottles only chase one.
After 3 months of testing, checking ingredient forms, verifying doses against clinical research, and tracking what men actually absorbed vs. what they swallowed, here are the 5 most popular options, ranked best to worst:
CORE SPERMFUEL+ is the only fertility supplement we tested that uses bioavailable forms across the board, with every dose on the label and Black Pepper™ for absorption.

FertilAid is one of the best-known fertility pills for men on Amazon. It has the right ingredients on the label, but look closer and you'll find problems with both the forms and the transparency.
Proprietary Blend Hides The Doses
CoQ10 and 4 other key ingredients are lumped into one "proprietary blend." The label never says how much of each one you're getting. Could be 100mg of CoQ10. Could be 5mg. You'd never know.
Cheap Mineral Forms
It uses magnesium oxide, one of the cheapest forms available. Your body absorbs roughly 4% of it. No Black Pepper™ for absorption.

Theralogix is a name a lot of fertility clinics know, and ConceptionXR is their main pill for men. The forms it uses are decent, but it's missing key ingredients entirely.
No CoQ10 At All
CoQ10 is the single most studied nutrient for sperm motility. It's not in this formula. You'd need to buy a separate bottle, and if that bottle doesn't include Black Pepper™, you're back to the same absorption problem.
Only 7 Nutrients
The label lists just 7. Our #1 has 14.
More Fillers Than Active Ingredients
It has 8 inactive ingredients like fillers, coatings, and binders. More extras than nutrients.

Pink Stork makes easy, tasty fertility vitamins. But the gummy format forces trade-offs on both forms and doses.
No Zinc Or CoQ10
Two of the most important fertility nutrients are not in this formula at all. It's mostly B vitamins.
Cheap Vitamin Forms
Its folate and B12 are the cheapest kinds available. Your body has to convert them before it can use them, and a lot of men can't convert them efficiently.
6g Of Added Sugar Per Serving
Sugar shows up 3 times on the label, under 3 different names. You're mostly eating candy.

Nature Made is a name everyone knows, and a lot of guys start with their zinc. But this isn't a fertility supplement, and the form it uses is part of the problem.
Made For Immune Support, Not Fertility
The label sells it for your immune system. Zinc matters for sperm, but on its own it's one brick, not the building.
Just 1 Nutrient
Zinc matters for testosterone synthesis, but it's only one piece. Your body uses a whole team of fertility nutrients to build healthy sperm. This covers one.
7 Fillers For 1 Mineral
Each tablet has 7 inactive ingredients just to carry one nutrient. More filler than formula.

Most likely because it used cheap ingredient forms your body can't absorb well. Zinc oxide absorbs at roughly 12%. CoQ10 without Black Pepper™ loses up to 30% of its effectiveness. And if the label said "proprietary blend," you had no way of knowing how much of anything was actually inside. You were taking the right ingredients in the wrong form.
Absorption. Citrate is zinc bonded to citric acid, a form your body takes up easily. Oxide is the cheapest form available, and most of it passes straight through unabsorbed. Most pharmacy supplements and Amazon blends use oxide because it costs a fraction of what citrate costs.
CoQ10 is fat-soluble and hard for your body to absorb on its own. Black Pepper™ has been shown to increase CoQ10 absorption by up to 30%. Without it, a significant amount of what you swallow never reaches your cells. Most fertility supplements skip Black Pepper™ because it adds cost.
Sperm take 74 days to build from start to finish. The ones in a test today were made over 2 months ago. Take it every day for a full cycle, then retest around day 90. That's the first batch built entirely on these ingredients.
The company offers a 120-day retest guarantee. That gives you a full sperm production cycle plus extra time to retest. If your numbers don't improve, you get your money back.
After testing 37 male fertility supplements, CORE SPERMFUEL+ was the only one that uses bioavailable forms across the board, prints every dose on the label, and includes Black Pepper™ for absorption. If you've been taking something and nothing's changed, the form was probably the problem.