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Phosphatidylserine

Also called phosphatidyl serine, sharp-ps, sharp ps.

The best price per 100 mg and per month, form by form, across 3 UK retailers, and where to buy it cheapest. A unit for comparing, not advice.

Comparing phosphatidylserine

We count the phosphatidylserine a label states per serving, whatever the pack size or the serving size, so every product sits on one scale. Products that combine phosphatidylserine with other ingredients are listed separately, because their price buys more than phosphatidylserine. 100 mg is our unit for comparing prices, not a dose to take: the label’s directions and a pharmacist decide that.

Phosphatidylserine

Prices last checked: . Ranked purely by price per 100 mg — a comparison unit, not a recommendation. We earn commission when you buy through these links; it never affects the order.

Compared at 100 mg. Enter the amount you take to see your own costs.

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Phosphatidylserine, Phosphatidylserine: products ranked by price per 100 mg
RankProductPer 100 mgPer monthLastsBuyHow it is worked out
1
Double Wood Supplements Phosphatidylserine
Cheapest per dosePhosphatidylserineHealf · 120 capsules · 60 servings · 300 mg a servingDetails and price historyAdd to my stackclaimed: gluten-free
12p£3.506 months£20.99View at Healf (opens in a new tab)Free delivery over £50.00, otherwise £3.99AmazonFind it on Amazon (opens in a new tab)A search, not a matched product. Price not compared.
Show the working
  • Servings: 120 ÷ 2 per serving = 60
  • In the pack: 60 × 300 mg = 18 g
  • £20.99 ÷ 18 g × 100 mg = 11.7p per 100 mg
  • Amount per serving: stated on the label.
What the retailer's listing says
  • pack units “120 caps”
  • servings stated “Servings Per Container: 60”
  • units per serving “Serving Size: 2 Capsules”
  • amount per serving “(Standardised To 20%) ; 300 mg”
  • phosphatidylserine “(Standardised To 20%)”

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2
ProHealth Longevity Phosphatidylserine
PhosphatidylserineHealf · 120 capsules · 60 servings · 300 mg a servingDetails and price historyAdd to my stack
28p£8.506 months£50.99View at Healf (opens in a new tab)Free delivery over £50.00, otherwise £3.99AmazonFind it on Amazon (opens in a new tab)A search, not a matched product. Price not compared.
Show the working
  • Servings: 120 ÷ 2 per serving = 60
  • In the pack: 60 × 300 mg = 18 g
  • £50.99 ÷ 18 g × 100 mg = 28.3p per 100 mg
  • Amount per serving: stated on the label.
What the retailer's listing says
  • pack units “120 caps”
  • servings stated “Servings Per Container: 60”
  • units per serving “Serving Size: 2 Capsules”
  • amount per serving “Phosphatidylserine (from sunflower) ; 300 mg”

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3
Nature's Best Cognition Plus Supplement (formerly Phosphatidyl Serine) - Cognitive Function and Overall Brain Support
Cognition Plus Supplement (formerly Phosphatidyl Serine) - Cognitive Function and Overall Brain Support60 tablets · 60 servings · 100 mg a servingDetails and price historyAdd to my stackalso contains zincTesting claimed on label
35p£10.472 months£20.95View at Lamberts Healthcare (Nature's Best) (opens in a new tab)Free delivery over £20.00, otherwise £2.50AmazonFind it on Amazon (opens in a new tab)A search, not a matched product. Price not compared.
Show the working
  • Servings: 60 ÷ 1 per serving = 60
  • In the pack: 60 × 100 mg = 6 g
  • £20.95 ÷ 6 g × 100 mg = 34.9p per 100 mg
  • Amount per serving: stated on the label.
  • Also contains: zinc. The price counts the phosphatidylserine only.
What the retailer's listing says
  • pack units “Specifications: 60 Tablets”
  • units per serving “take 1 tablet daily with a meal”
  • amount per serving “Each tablet contains 100mg of Phosphatidyl Serine”

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4
Seeking Health Phosphatidyl Serine
Phosphatidyl SerineHealf · 60 capsules · 60 servings · 150 mg a servingDetails and price historyAdd to my stackclaimed: vegan
39p£11.833 months£35.49View at Healf (opens in a new tab)Free delivery over £50.00, otherwise £3.99AmazonFind it on Amazon (opens in a new tab)A search, not a matched product. Price not compared.
Show the working
  • Servings: 60 ÷ 1 per serving = 60
  • In the pack: 60 × 150 mg = 9 g
  • £35.49 ÷ 9 g × 100 mg = 39.4p per 100 mg
  • Amount per serving: stated on the label.
What the retailer's listing says
  • pack units “60 caps”
  • servings stated “Servings Per Container: 60”
  • units per serving “Serving Size: 1 Capsule”
  • amount per serving “(SharpPS®) ; 150 mg”

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5
Thorne Phosphatidylserine
PhosphatidylserineHealf · 60 capsules · 60 servings · 100 mg a servingDetails and price historyAdd to my stack
92p£27.752 months£55.49View at Healf (opens in a new tab)Free delivery over £50.00, otherwise £3.99AmazonFind it on Amazon (opens in a new tab)A search, not a matched product. Price not compared.
Show the working
  • Servings: 60 ÷ 1 per serving = 60
  • In the pack: 60 × 100 mg = 6 g
  • £55.49 ÷ 6 g × 100 mg = 92.5p per 100 mg
  • Amount per serving: stated on the label.
What the retailer's listing says
  • pack units “60 caps”
  • servings stated “Servings Per Container: 60”
  • units per serving “Serving Size: 1 Capsule”
  • amount per serving “Phosphatidylserine Isolate ; 100 mg”

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6
Simply Supplements Phosphatidyl Serine Complex
Phosphatidyl Serine Complex120 tablets · 60 servings · 40 mg a servingDetails and price historyAdd to my stackalso contains ginkgo
98p£29.3624 days£23.49View at Simply Supplements (opens in a new tab)Free delivery from £20.00, otherwise £1.99AmazonFind it on Amazon (opens in a new tab)A search, not a matched product. Price not compared.
Show the working
  • Servings: 120 ÷ 2 per serving = 60
  • In the pack: 60 × 40 mg = 2.4 g
  • £23.49 ÷ 2.4 g × 100 mg = 97.9p per 100 mg
  • Amount per serving: stated on the label.
  • Also contains: ginkgo. The price counts the phosphatidylserine only.
What the retailer's listing says
  • pack units “Serving Size: 2 Tablets”
  • units per serving “Serving Size: 2 Tablets”
  • amount per serving “Phosphatidyl Serine 40mg”
  • confirmed values “confirmed from the retailer's own product page, not this listing's text: form id ps; amount per serving 40.0; amount unit mg; amount refers to compound; pack units 120; pack unit type tablet; units per serving 2.0”

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7
Biocare Phosphatidyl Serine
Phosphatidyl SerineHealf · 30 capsules · 15 servings · 200 mg a servingDetails and price historyAdd to my stackclaimed: veganclaimed: vegetarian
£1.69£50.7030 days£50.70View at Healf (opens in a new tab)Free delivery over £50.00, otherwise £3.99AmazonFind it on Amazon (opens in a new tab)A search, not a matched product. Price not compared.
Show the working
  • Servings: 30 ÷ 2 per serving = 15
  • In the pack: 15 × 200 mg = 3 g
  • £50.70 ÷ 3 g × 100 mg = £1.69 per 100 mg
  • Amount per serving: stated on the label.
What the retailer's listing says
  • pack units “30 caps”
  • units per serving “per daily intake: 2 capsules”
  • amount per serving “Providing Phosphatidylserine ; 200mg”
  • phosphatidylserine “Providing Phosphatidylserine ; 200mg”

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By shop

Each shop's phosphatidylserine products, with where its cheapest sits in the market.

How we work out these prices

We count the amount of phosphatidylserine per serving as stated on the label.

Questions

Where can I buy phosphatidylserine cheapest in the UK?

On 20 October 2026, the cheapest phosphatidylserine per dose from a UK seller was Phosphatidylserine at Healf (12p per 100 mg, £3.50 a month). Then Phosphatidylserine at Healf (28p per 100 mg, £8.50 a month) and Cognition Plus Supplement (formerly Phosphatidyl Serine) - Cognitive Function and Overall Brain Support at Lamberts Healthcare (Nature's Best) (35p per 100 mg, £10.47 a month). That is by price per 100 mg, across 3 UK retailers and 7 products, with every price checked daily; the table above shows the working for each.

What is the best price per 100 mg of phosphatidylserine today?

12p per 100 mg, for Phosphatidylserine at Healf (12p per 100 mg, £3.50 a month), on 20 October 2026. The dearest of the 7 products we price is £1.69 per 100 mg, and the middle one is 39p.

How much does phosphatidylserine cost per month?

At one 100 mg dose a day, the cheapest works out at £3.50 a month, for Phosphatidylserine at Healf, on 20 October 2026. Across the 7 products we price it runs from £3.50 to £50.70 a month. A month is 30 days, and the figure follows the dose you enter in the table.

How long does a pack of phosphatidylserine last?

At one 100 mg dose a day, the packs we price last from 24 days to 6 months; the middle one lasts 2 months. Each row says how long its pack lasts at the dose you enter.

What does “per 100 mg” mean?

It is the unit we use to put every product on the same scale: the price of 100 mg of phosphatidylserine, whatever the pack size or serving size. It is a comparison unit, not a recommendation of how much to take. Use the “Your daily dose” box to see costs at the amount you actually take.

Why is a product I have seen in the shops missing?

If a retailer’s listing does not let us confirm the amount per serving, the pack size or the form, we do not guess and we do not show the product. It appears once its label has been read and confirmed.

How up to date are the prices?

Prices on this page were last checked on 20 October 2026. Every table shows the date its prices were checked. Always confirm the price on the retailer’s site before buying.

Do retailers pay to appear higher?

No. We earn a commission when you buy through our links, but the order is set only by price per dose. No retailer or brand can pay for position.