What is phosphatidylserine?
Phosphatidylserine (PS) is a type of phospholipid (a fatty compound that makes up the membranes around cells). It's especially abundant in brain cells.
Here's what it's known to do in the brain.
- It helps your brain release and respond to acetylcholine, a signaling chemical used for memory and learning.
- It helps nerve cells send signals to each other smoothly.
Lecithin (a phospholipid in soy and egg yolks) contains a little, but not much, so some people take it separately.
Does phosphatidylserine work? An honest summary
Opinions are split on this one. Here's a simple table.
| The hopeful side | The cautious side |
|---|---|
| It's one of the more studied brain nutrients | Most of the studies were funded by companies |
| It may help slow declines in memory and cognitive function | The more studies pile up, the less clear the effect looks |
| It's also used as support for people with declining cognitive function | There's no way to check the effect yourself, so it's easy to keep spending a lot on it |
Bottom line: It's not something you'll lose out on by taking, but it isn't the top memory supplement. Start with omega-3 or ginkgo biloba extract, and add it if you still want to do more.
Who it's for / who can skip it
Good for you if
- You're in your late 40s to early 50s, forgetting things more often, and want to get ahead of it
- You already take omega-3 and ginkgo and want to add one more
- You're looking for a gentle brain supplement you can take long term (it's generally safer than prescription-strength choline compounds)
You can skip it if
- You don't take basic supplements (like omega-3) yet
- You're on a tight budget
What to pair it with, and medicines to watch
Good partners
- Alpha-GPC (choline): It's a raw material for acetylcholine, so taking it with phosphatidylserine makes a combo that supports each other.
- Lecithin: Phosphatidylserine fills in what lecithin lacks.
Medicines to watch (the effect tends to be small)
- Anticholinergics (drugs used for runny nose, overactive bladder, motion sickness, etc.): They may work in opposite directions.
- Dementia medicines (acetylcholinesterase inhibitors like donepezil): It may have a slight effect. If you take one, talk to the doctor who prescribed it.
Medications and conditions to watch
- Note Anticholinergics — May clash with its choline-related effects
- Note Dementia medicines like donepezil (acetylcholinesterase inhibitors) — May have a slight effect — talk to your prescribing doctor
Combinations
Works well with: Choline, Lecithin, Omega-3, Ginkgo biloba
Frequently asked questions
Does phosphatidylserine work?
It's a building block of brain cell membranes, so it may help support memory. But as more studies come in, the effect looks less clear, so we don't see it as a first-choice supplement.
Can I take phosphatidylserine with alpha-GPC?
Yes, it's a common combo that supports each other. Alpha-GPC is a raw material for acetylcholine, a memory signaling chemical, so they pair well.
Which memory supplement should I start with?
Start with the basics like omega-3 or ginkgo biloba extract. Consider phosphatidylserine after that, if you want to add more.
Can I take phosphatidylserine long term?
It's gentle, so it's used as a long-term supplement. But it's hard to tell for yourself whether it's working, so take it for a few months and then decide whether to continue.
Can I take phosphatidylserine with dementia medicine?
It may have a slight effect. If you take dementia medicine, talk to the doctor who prescribed it first.
Related concerns
Last updated 2026-10-12