Doctor Life

Optimized Singles

CDP Choline

Cognizin® Citicoline

112,99 zł

Tax included. Shipping calculated at checkout.

Build your routine

Four categories. Find the support that fits your needs.

  • Designed to support memory and focus
  • A considered choice for demanding mental work
  • Two flexible servings to fit your day

Overview

A focused addition to a demanding day. CDP Choline is designed for adults who want to support memory, concentration, and mental performance, whether working with complex information, studying, or staying mentally active later in life.

At the heart of the formula / CDP Choline

Thoughtful support. Clear purpose.

  1. 01Designed to support memory and focus
  2. 02A considered choice for demanding mental work
  3. 03Two flexible servings to fit your day
  4. 04A branded ingredient studied in humans
  5. 05A convenient 30–60-day supply
  6. 06A clear, single-ingredient formula
Doctor Life / 01

CDP Choline

Made for your daily routine.

The formula uses Cognizin® citicoline, a branded ingredient studied in healthy adults. One capsule provides 250 mg, and the maximum daily serving provides 500 mg—amounts used in research on attention, memory, and brain energy metabolism.

A single-ingredient formula makes the serving clear and easy to track. Take one or two capsules daily, with or between meals. Each bottle provides 30–60 days of use for adults who prefer a focused formula.

Doctor Life / 02

CDP Choline

Why is citicoline of interest?

Citicoline is a naturally occurring compound involved in phospholipid metabolism. Phospholipids are important components of nerve cell membranes. Cognizin® is a branded form studied in healthy adults for memory, attention, and brain energy metabolism. It was selected for a focused formula for adults interested in an active mind at work, in study, and with age.

Doctor Life / 03

CDP Choline

What research informs CDP Choline?

Research on Cognizin® has assessed memory, attention, response control, and brain energy metabolism in healthy adults. A 12-week trial of 500 mg daily reported improvements in episodic and overall memory scores in adults ages 50–85. Another trial using 250 or 500 mg assessed attention in middle-aged women, while an imaging study examined brain energy and phospholipid metabolism. These findings informed the ingredient choice; individual results can vary.

Ingredients / Doctor Life

Every ingredient. Clearly explained.

Each ingredient, its form and quantity — in one place.

Ingredient amounts for the servings shown in the table.
Ingredient——
Cognizin® citicoline250 mg500 mg

*NRV: Nutrient Reference Value

Full ingredient list

Citicoline (Cognizin®); capsule shell: hydroxypropyl methylcellulose (binder).

How to use

Part of your daily rhythm.

01

How to use

Take 1 capsule up to twice daily, with or between meals, according to your preference.

02

Important information

Do not exceed the recommended daily serving. Food supplements should not replace a varied diet. Maintain a balanced diet and a healthy lifestyle. Store at room temperature, out of reach of young children.

Science & sources

Understand the formula.

Selected studies explore Cognizin® citicoline in relation to memory, attention, cognitive control, and brain energy metabolism.

These publications concern the studied ingredients or formulas. They do not all evaluate the finished Doctor Life product, and research results do not guarantee individual outcomes.

01Citicoline and Memory Function in Healthy Older Adults: A Randomized, Double-Blind, Placebo-Controlled Clinical Trial

E. Nakazaki, E. Mah, K. Sanoshy, D. Citrolo, F. Watanabe

The Journal of Nutrition (2021), 151(8), 2153–2160. DOI: 10.1093/jn/nxab119; PMID: 33978188.

In a 12-week trial, 100 healthy adults ages 50–85 received either 500 mg of Cognizin® daily or a placebo. The citicoline group showed greater improvements in episodic memory and overall memory scores, areas relevant to cognitive function with age.

Read publication ↗
02Improved Attentional Performance Following Citicoline Administration in Healthy Adult Women

E. McGlade, A. Locatelli, J. Hardy, T. Kamiya, M. Morita, K. Morishita, Y. Sugimura, D. Yurgelun-Todd

Food and Nutrition Sciences (2012), 3(6), 769–773. DOI: 10.4236/fns.2012.36103.

In a randomized trial, healthy women ages 40–60 took 250 or 500 mg of Cognizin® daily for 28 days. Both doses produced favorable changes on attention tests, including response control and accuracy during tasks requiring concentration.

Read publication ↗
03Citicoline enhances frontal lobe bioenergetics as measured by phosphorus magnetic resonance spectroscopy

M.M. Silveri, J. Dikan, A.J. Ross, J.E. Jensen, T. Kamiya, Y. Kawada, P.F. Renshaw, D.A. Yurgelun-Todd

NMR in Biomedicine (2008), 21(10), 1066–1075. DOI: 10.1002/nbm.1281; PMID: 18816480.

After six weeks of Cognizin® use, brain imaging showed favorable changes in measures of energy metabolism and phospholipid turnover in the frontal region. The findings contribute to research on citicoline and brain function.

Read publication ↗

FAQ / CDP Choline

Good questions. Clear answers.

Talk to us ↗
How does Cognizin® differ from ordinary choline?

Cognizin® is branded citicoline, also called CDP-choline. It supplies both choline and cytidine and participates in the metabolism of phospholipids found in nerve cell membranes. This particular form has been used in studies of memory, attention, and brain metabolism.

How do I choose between one and two capsules?

The directions allow one capsule up to twice daily. One capsule provides 250 mg of Cognizin®, and two provide 500 mg. Both amounts have been used in attention studies. Do not exceed two capsules daily.

Does Cognizin® work immediately?

Citicoline is not a conventional stimulant with an immediate effect. Cognizin® studies have involved regular use over periods such as 28 days, six weeks, or 12 weeks. Treat it as part of a consistent routine, not a short-term substitute for sleep or rest.

Does it stimulate like caffeine?

The formula contains no caffeine or declared caffeine sources. It is designed for adults interested in memory and concentration within a consistent routine, rather than short-term stimulation.

Why use a single-ingredient formula?

A focused formula makes your daily Cognizin® intake clear, without additional extracts or vitamins. It suits adults seeking a specific branded ingredient within their own supplement plan.

How many days does a bottle provide?

Each bottle contains 60 capsules. It lasts 60 days at one capsule daily or 30 days at the maximum serving of two. Take with or between meals.

Can I take Cognizin® with medication or other supplements?

If you take medication, other choline products, or cognitive supplements, consult your doctor or pharmacist. Seek advice during pregnancy or breastfeeding and if you are under ongoing medical care.