PS-100 (Phosphatidylserine) 60 Capsules

Regular price $199.95 AUD

Key Benefits

  • Supports formation and retrieval of memories and cognitive flexibility.
  • Helps attention, processing speed and mental clarity.
  • May support optimal cortisol dynamics under stress.
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Practitioner-grade support. Always read the label and follow the directions for use.

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Memory, Focus & Calmer Cortisol — Daily Brain Support with PS-100

Sharpen recall, sustain attention and support a balanced stress response with phosphatidylserine (PS-100)—a key phospholipid for neuronal membranes, synaptic signalling and healthy cortisol rhythms.


  1. Memory & learning: Supports formation and retrieval of memories and cognitive flexibility.
  2. Focus & executive function: Helps attention, processing speed and mental clarity.
  3. Healthy stress response: May support optimal cortisol dynamics under stress.
  4. Brain cell structure: Contributes to neuronal membrane integrity and signalling.
  5. Everyday performance: Useful for study, busy workdays and healthy ageing.
  • 100 mg per capsule: Easy to tailor—common protocols are 100–300 mg/day.
  • High-purity PS: Derived from soy or sunflower lecithin (see label for source).
  • Clean excipients: Practitioner-grade quality with minimal additives.

Phosphatidylserine (100 mg per softgel; Sharp-PS® Green from sunflower).

One to three (1-3 ) softgels daily, or as directed by a healthcare professional. Best taken with meals.

Typically minimal (e.g., vegetarian capsule [hypromellose], microcrystalline cellulose, silicon dioxide, L-leucine). Please verify on label.

  • Check label for soy if PS is soy-derived; many formulas are sunflower-based.
  • Generally free from gluten, dairy and GMOs. Confirm on label.
  • If using anticoagulants/antiplatelets or have a bleeding disorder, consult your healthcare professional.
  • May be stimulating in some individuals; avoid close to bedtime if sensitive.
  • Pregnancy/breastfeeding: seek professional advice.
  • Always read the label and follow the directions for use. Supplements should not replace a balanced diet.

Store below 25°C in a cool, dry place away from direct sunlight. Keep out of reach of children.

Phosphatidylserine FAQsCommon questions about phosphatidylserine supplements
What is phosphatidylserine?

Phosphatidylserine is a phospholipid, a type of fat-like compound found in cell membranes. It is naturally present in the body and is especially associated with brain and nerve cell membranes. In supplements, it is commonly used in cognitive support, memory, focus, stress-response and practitioner-style formulas.

What does phosphatidylserine help support?

Phosphatidylserine supplements are commonly used to support cognitive function, memory, focus, mental performance, brain health, stress-response balance and healthy ageing. The exact purpose depends on the product, dose, source and whether it is used alone or in a broader formula.

How do I choose the right phosphatidylserine supplement?

Look at the amount of phosphatidylserine per serve, source material, capsule count, dose directions, added nutrients and whether the formula is designed for memory, focus, stress-response support, ageing brain health or practitioner-guided use.

Is phosphatidylserine the same as phosphatidylcholine?

No. Phosphatidylserine and phosphatidylcholine are different phospholipids. Phosphatidylserine is commonly used in brain, memory and stress-response formulas, while phosphatidylcholine is often used in liver, bile, choline and cell membrane support formulas.

Is phosphatidylserine the same as choline?

No. Phosphatidylserine is not the same as choline. Some brain-support formulas may include both phosphatidylserine and choline-related nutrients, but they are different ingredients with different roles in the body.

Can phosphatidylserine support memory?

Phosphatidylserine is commonly included in memory and cognitive-support formulas. Memory concerns can have many causes, including sleep, stress, ageing, medication, mood, hormones, B12, thyroid function or neurological conditions, so persistent or worsening symptoms should be assessed professionally.

Can phosphatidylserine support focus?

Phosphatidylserine may be used in focus and mental-performance formulas, especially where cognitive workload, stress or ageing brain support are part of the picture. Focus concerns can also be linked with sleep, stress, nutrition, medication or health conditions.

Can phosphatidylserine support stress response?

Phosphatidylserine is sometimes used in stress-response and cortisol-support formulas. Stress can have many causes, so supplements should be considered alongside sleep, nutrition, workload, movement, emotional support and professional care where needed.

Can phosphatidylserine support exercise or performance?

Some formulas use phosphatidylserine in sports, recovery or performance-support products, often around stress response, focus or training adaptation. The best fit depends on the product purpose, dose and whether it is being used for cognitive support, training support or both.

What is the best time to take phosphatidylserine?

Timing depends on the product and your tolerance. Some people take phosphatidylserine earlier in the day for focus or cognitive support, while others follow specific practitioner directions. If it affects your sleep, avoid taking it late in the day unless advised.

Can phosphatidylserine affect sleep?

Yes, some people may experience insomnia or sleep changes. If this happens, check the dose, timing and full formula, especially if the product also contains B vitamins, caffeine, adaptogens or other focus-support ingredients.

Can phosphatidylserine cause side effects?

Phosphatidylserine is generally well tolerated by many people, but some may experience stomach upset, gas, nausea, headache, insomnia, rash, mood changes or low blood sugar symptoms. If symptoms are severe, persistent or unusual, stop use and seek professional advice.

Can phosphatidylserine affect blood sugar?

Phosphatidylserine may not suit everyone with blood sugar concerns. If you have diabetes, low blood sugar episodes, insulin resistance or take blood-sugar-lowering medication, speak with your doctor or pharmacist before using phosphatidylserine.

Can I take phosphatidylserine with medication?

Use caution. Phosphatidylserine may not suit some medicines or medical situations, especially diabetes medication, blood pressure medication, sleep medicines, mood medicines, stimulant medicines, blood-thinning medicines or other prescribed treatments. Ask your doctor or pharmacist before use if you take regular medication.

Can I take phosphatidylserine with other brain supplements?

Phosphatidylserine is often combined with omega-3, acetyl-L-carnitine, alpha-lipoic acid, B vitamins, bacopa, ginkgo, choline, CoQ10 or other cognitive-support nutrients. Check the full ingredient panels before combining products to avoid unnecessary duplication or unsuitable combinations.

Can I take more than one phosphatidylserine product at the same time?

Use caution when combining phosphatidylserine products. Brain-support formulas, stress-response formulas, sports formulas and practitioner products may all contain phosphatidylserine. Taking several together can increase your total intake unnecessarily.

Is phosphatidylserine suitable for people with soy or seafood allergies?

It depends on the product source. Some phosphatidylserine supplements may be derived from soy, sunflower or marine-based sources. Always check the ingredient list, allergen statement and capsule ingredients before use if you have allergies or dietary restrictions.

Is phosphatidylserine suitable during pregnancy or breastfeeding?

Phosphatidylserine supplement suitability during pregnancy or breastfeeding should be checked with a doctor, midwife, pharmacist or qualified health professional. Pregnancy and breastfeeding are times when supplement use should be personalised, especially with practitioner-style products.

Can children take phosphatidylserine supplements?

Children should only use phosphatidylserine products that clearly state age suitability and are appropriate for their needs. For young children, teenagers with focus, mood, sleep, learning or medication concerns, seek professional advice first.

Who should be cautious with phosphatidylserine supplements?

People who are pregnant, breastfeeding, taking medication, managing diabetes, low blood sugar, mood conditions, sleep problems, neurological symptoms, blood pressure concerns, diagnosed medical conditions, allergies, or shopping for a child should seek professional advice before using phosphatidylserine.

Is this information a replacement for medical advice?

No. This information is general only and does not replace personalised medical advice. If you are pregnant, breastfeeding, taking medication, shopping for a child, managing memory concerns, focus issues, sleep problems, blood sugar concerns or a diagnosed condition, speak with a qualified health professional before use.