Focus Factor vs Natrol Cognium: Which Is Better for Memory?

Short answer: my 2021 version of this comparison picked Focus Factor and said Cognium’s one ingredient wasn’t proven. Half of that was wrong. Cognium’s silk protein (Cera-Q, also called BF-7) has a small placebo-controlled dose study behind it, and that study points to a catch: regular Cognium gives you 200 mg a day, below the lowest dose the study tested. Cognium Extra Strength gives 400 mg, which lands in the study’s 400 to 600 mg sweet spot. Focus Factor is a cheap multivitamin with a hidden 640 mg blend. For memory specifically, I’d now pick Cognium Extra Strength over either.

I rewrote this from the current labels (Natrol’s and Focus Factor’s own sites, October 2026) and the actual studies. A quick reminder, folks: I’m not a doctor, and I’ll flag who should be careful with each one.

Here’s what I’ll cover:

• What’s in Cognium and Cognium Extra Strength
• What the silk protein studies found, and the dose catch
• What’s in Focus Factor, and what its study showed
• Side effects and who should skip each one
• Price per day and my pick

Natrol Cognium: one ingredient, two strengths

Cognium is made by Natrol. It has exactly one active ingredient, a silk protein hydrolysate made from silkworm silk:

• Cognium Memory: 100 mg silk protein hydrolysate complex per tablet
• Cognium Memory Extra Strength: 200 mg per tablet

Both labels say the same thing for directions: adults take 1 tablet in the morning and 1 in the evening, with a meal. So the daily dose is 200 mg for regular and 400 mg for Extra Strength. Each bottle holds 60 tablets, which is 30 days.

The labels also say to check with a healthcare professional first if you’re pregnant, nursing, under 18, on medication or have a medical condition.

What the silk protein studies found

In the research, this ingredient goes by Brain Factor-7, or BF-7. Natrol’s own studies page says so, and a 2018 study confirms the material is sold under the trade name Cera-Q.

That 2018 study, published in the journal Nutrients, is the most useful one. 76 healthy adults aged 28 to 92 were split into four groups: placebo, 280 mg, 400 mg or 600 mg a day, taken in two doses, for three weeks. Memory scores went up with dose. The authors said it worked at doses over 280 mg a day and seemed to plateau at 400 to 600 mg. No adverse effects were reported.

Two honest caveats. The groups were small (19 people each, and 15 people were dropped for non-compliance), and two of the four authors worked for BrainOn, the company that makes the ingredient. The older studies Natrol lists are from 2004 and 2005, and two of them were published in Korean.

So my 2021 line that there was “no reputable scientific evidence” was too harsh. There’s real, if small and company-linked, evidence.

The dose catch: regular vs Extra Strength

Here’s the part I rarely see mentioned. The 2018 study’s lowest dose was 280 mg a day, and the best results came at 400 to 600 mg. Now look at the bottles:

• Regular Cognium, as directed: 200 mg a day. That’s below every dose the study tested.
• Cognium Extra Strength, as directed: 400 mg a day. That lands in the study’s 400 to 600 mg plateau (600 mg edged it out on some measures).

Natrol’s studies page also lists older Korean studies from 2004 and 2005, It doesn’t give the doses used, though it marks one 2004 blood-flow study as applying only to Extra Strength. I won’t claim 200 mg does nothing. I just can’t find good evidence for it. But if I were buying Cognium, I’d buy Extra Strength. The research is simply stronger for that dose.

READ: Prevagen vs Natrol Cognium

Focus Factor Original: a multivitamin with a hidden blend

Focus Factor Original is made by Synergy CHC. The serving is 4 tablets a day with food, and the maker says you can go up to 8. Most of the label is a normal multivitamin: 15 mg of vitamin B6, 20 mcg of B12, 400 mcg of folic acid, 100 mg of magnesium and so on.

The brain ingredients sit inside a 640 mg proprietary blend: DMAE, bacopa, phosphatidylserine, DHA, N-acetyl tyrosine, vinpocetine, huperzine A and more. No individual amounts are given. Turns out that’s the same complaint I had in 2021.

Focus Factor does have a study. In a 2011 trial run for the company that sold it then, 96 healthy adults took 4 tablets a day or a placebo for six weeks. The Focus Factor group recalled 51.9 words on a memory test against 49.7 for placebo, about a 2-word difference. Headaches were more common on Focus Factor (14.9% vs 8.2%).

My 2021 version also said Focus Factor contains ginkgo. The current Original label doesn’t.

READ: Focus Factor vs Ginkgo Biloba (with the full Focus Factor study breakdown)

Side effects and who should skip each one

Cognium. The 2018 study reported no adverse effects over three weeks. It also excluded people with a silk allergy, blood clotting disorders, and anyone pregnant or breastfeeding, so if any of those apply to you, talk to your doctor first. Natrol’s label similarly says to check with a healthcare professional first if you’re pregnant, nursing, under 18 or on medication.

Focus Factor. Three things worth knowing:

• It contains vinpocetine. In 2019 the FDA warned that vinpocetine may cause a miscarriage or harm fetal development, and advised pregnant women and anyone who could become pregnant not to take it.
• Its 15 mg of B6 per serving (30 mg on 8 tablets) is under the US upper limit of 100 mg a day, but above the 12 mg a day limit Europe’s food safety agency set in 2023.
• It contains fish and soy.

If you take prescription medicine, show either label to your pharmacist. Focus Factor’s blend includes huperzine A, which is studied as a treatment for dementia and Alzheimer’s disease.

Price per day, and my pick

Here’s what each maker’s own store charged in October 2026:

• Cognium Memory: $32.99 for 60 tablets, about $1.10 a day
• Cognium Memory Extra Strength: $49.99 for 60 tablets, about $1.67 a day
• Focus Factor Original: $29.99 for 150 tablets, about 80 cents a day at 4 tablets

You can compare these with anything else using my cost per serving calculator.

My pick for memory is Cognium Extra Strength. It’s a single, transparent ingredient at a dose its best study found effective, with no proprietary blend. Focus Factor is the cheaper all-round multivitamin, but you can’t see what you’re getting in the brain blend, and pregnant women shouldn’t take it. And honestly, I’d skip regular Cognium. For the extra 57 cents a day, Extra Strength gets you into the range that worked.

Whichever you try, track it. The Cognium study ran three weeks and Focus Factor’s six, so give it at least a month. My four-week trial tracker and free memory and attention tests help you see real changes instead of guessing.

Natrol Cognium Memory Extra Strength, Brain Memory Supplements, 60 Tablets

• COGNIUM FOR BRAIN HEALTH SUPPORT(1): Natrol Cognium Memory Extra Strength is a brain health supplement and memory health supplement, a dietary supplement that supports brain health and helps maintain cognitive function, as suggested in an in vitro study(1)
• HELPS KEEP YOUR MEMORY STRONG (1): Cognium Memory brain support supplement is powered by a natural protein from silkworm cocoons; it has been shown to be effective in healthy adults in multiple human clinical trials(1)
• ENHANCES MENTAL PERFORMANCE: Natrol Extra Strength Cognium Memory brain health supplements enhance mental performance in healthy adults by improving cognitive function(1)

$32.92 In Stock

Check Deals on Amazon

Paid link · price checked October 3, 2026 09:33

Focus Factor Nutrition for The Brain Improved Memory & Concentration Brain Supplement, 150 Count, 1 Pack (10407)

• #1 PHARMACIST RECOMMENDED MEMORY SUPPLEMENT BRAND: Focus Factor is the #1 Pharmacist Recommended Brand based on the results of the U.S. Pharmacy Times Survey of Pharmacists’ OTC Recommendations for “Memory Support” dietary supplement, 2025-2026.
• COMPLETE MULTIVITAMIN IMPROVES FOCUS: Focus Factor Extra Strength brain supplements contain a powerful combination of vitamins, minerals, and neuro-nutrients, that not only power your brain but can also replace your daily multivitamin
• CLINICALLY TESTED RESULTS: A clinical study showed that adults who took the original Focus Factor as directed for six weeks improved their memory, concentration and focus.

$32.99 In Stock

Check Deals on Amazon

Paid link · price checked October 3, 2026 09:33

Quick answers

What is Cera-Q?

It’s the trade name for a silk protein hydrolysate also known as BF-7 (Brain Factor-7). It’s the only active ingredient in Cognium.

Does Cognium work?

A small 2018 placebo-controlled study found better memory scores after three weeks at doses over 280 mg a day (it tested 280, 400 and 600 mg), with the best results at 400 to 600 mg. Two of its authors worked for the ingredient’s maker.

What’s the difference between Cognium and Cognium Extra Strength?

100 mg vs 200 mg per tablet. At 2 tablets a day, that’s 200 mg vs 400 mg.

How long does Cognium take to work?

Natrol’s product page says its studies showed improvements “in as little as four weeks.” In the 2018 silk protein study by Kang and colleagues, memory was tested after 21 days of use.

Can I take Cognium and Focus Factor together?

There’s no study on the combination. Check with your doctor or pharmacist, especially if you take medication.

Conclusion

Focus Factor vs Natrol Cognium flips from my 2021 verdict. Cognium’s silk protein has more relevant, dose-tested evidence than I gave it credit for, and Cognium Extra Strength gets you into the dose range that worked best. Regular Cognium falls short of that dose. Focus Factor is a cheap multivitamin with a hidden brain blend and one small company-funded study. If you want to see what made my overall list, here’s my top 3 nootropics for 2026.

That would be it folks! If you’ve tried either one, tell me in the comments what you noticed after a month.