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Phosphatidylserine Soy or Sunflower: Reading the Source
Phosphatidylserine soy is the version used in the best-known trial, but capsules can also be made from other sources, such as sunflower. A label should tell you which one. If it does not, ask the seller before you buy, especially if you have a soy allergy.
Written by the MemoPryl label deskUpdated · 4 min read
Why does the phosphatidylserine source matter?
The source matters for two reasons: allergies and comparing the capsule with research.
Phosphatidylserine is extracted from a raw material and then processed. Soy and sunflower are two common raw materials. Someone with a soy allergy needs to know which one is in the capsule.
The second reason is research. The trial that tested 100 mg and 300 mg a day used soy phosphatidylserine (Kato-Kataoka 2010, soy PS trial). If your capsule uses a different source, you cannot assume it behaves the same way.
A source line is cheap for a company to print. When it is missing, you learn something about how much detail the label gives you.
Is a soy-based capsule a problem for a soy allergy?
It can be. If you have a soy allergy, treat "soy" on a label, or a blank where the source should be, as a reason to ask first.
US labels are expected to name major allergens, and FDA explains that it cannot review supplement labels before they reach shelves (FDA 101: Dietary Supplements). So the check falls to you. Read the "other ingredients" line, the allergen line and the capsule shell description.
Ask a pharmacist or allergist if the answer is unclear. Do not rely on a photo of a bottle, which may be old. The bottle in your hand is the one that counts.
- Find the allergen statement, often under the facts panel.
- Look for "soy", "soybean" or "lecithin" in the other ingredients.
- Write to the seller if the source is not stated.
How do I compare labels that name a source?
Compare them line by line. A clear label answers every row below, and a thin one leaves gaps.
| Label line | Clear label | Thin label |
|---|---|---|
| Ingredient name | Phosphatidylserine with source | Name only |
| Amount | Milligrams per serving | Inside a blend |
| Allergens | Named in a statement | Silent |
| Other ingredients | Listed in full | Missing |
Cleveland Clinic also advises people who are pregnant or breastfeeding to ask a provider before using phosphatidylserine (Cleveland Clinic, Phosphatidyl.). Source questions can ride along in the same conversation.
MemoPryl: capsules in 2, 3 or 6 bottlesRead the bottle · check your medicines · 60-day window (confirm)
See packsWhere is the source line on a MemoPryl bottle?
On the images we hold, there is no source line. Neither label shows a facts panel or an ingredient list.
The spots below mark what the front of label B does show: the name, the formula wording, the count and the claims. Everything about source, amount and allergens is absent.
Tap a number to read that part of the label.
- Heading
'ADVANCED FORMULA'.
- Name and maker line
MemoPryl, with 'By NutraVibe' beneath it. We cannot confirm who makes the product.
- Claims
'Supports Concentration*', 'Supports Brain Energy*' and 'Supports Productivity*'.
- Count
'60 CAPSULES'. The other bottle image says 30.
- Product type
'DIETARY SUPPLEMENT'.
That does not mean the final bottle is silent. It means we cannot confirm anything. The supplement facts page lists every line still missing.
What should a MemoPryl buyer do about the source?
Read the panel and allergen line on your own bottle. If they are missing, call or write before taking a capsule.
Phosphatidylserine is one of six names linked to MemoPryl through a sibling pack. It is unconfirmed for the bottle you receive. The order desk takes questions at +1 (302) 200-3480 and [email protected], and the ingredients page shows where each name stands.
Keep taking any prescribed medicine, and ask your doctor or pharmacist before you start a new supplement.
Thinking about MemoPryl?Check your medicines with a pharmacist first. Prices and the 60-day window are confirmed at checkout.
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FAQ01
MemoPryl questions people ask
Is sunflower phosphatidylserine as good as soy?
No head-to-head result is cited here. The trial we cite used soy phosphatidylserine, so its findings do not automatically carry over to a capsule made from sunflower. Ask the seller which source a given capsule uses.
Does MemoPryl contain soy?
Unknown. No ingredient list or allergen statement appears on the images we hold. If you have a soy allergy, read the allergen line on your own bottle, or ask the order desk before opening it.
Is soy lecithin the same as phosphatidylserine?
No. Lecithin is a mixture of phospholipids, while phosphatidylserine is one specific phospholipid. A label that lists lecithin among the other ingredients is not telling you the phosphatidylserine amount.
Who wrote this02
Written and reviewed by
Pages built from the bottle images, the seller's product notes and linked NIH, FDA, FTC and peer-reviewed sources.
Last updated . Learn about our editorial standards and how we check reviews. This website is run by Official stocking desk for MemoPryl, not by the manufacturer or the distributor of the bottle. We make money when you buy through our order links.
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Read the bottle you receive, check your medicines with a pharmacist, then choose a pack. Prices and the guarantee terms are confirmed at checkout.
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