• Supplement bottle labeled 'Pre+Pro15' by OCTI Nutrition on a white background
  • OCI Nutrition Pre-Pro15 supplement bottle with green background and bubbles
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Pre + Pro 15

Pre + Pro 15

15 live culture strains · 15 billion CFU per serving · FOS prebiotic fibre + 8 B vitamins · 90 capsules

£18.50
£18.50
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£0.61 a day · one bottle lasts 30 days
  • 30-day guarantee
  • Same-day dispatch
  • Made in the UK
  • Live cultures — 15 strains at 15 billion CFU per serving, with FOS prebiotic fibre
  • Energy — B6 and B12 contribute to normal energy-yielding metabolism and to the reduction of tiredness and fatigue
  • Gut lining — riboflavin and niacin contribute to the maintenance of normal mucous membranes
  • 15 strains of live cultures at 15 billion CFU per serving
  • With fructo-oligosaccharide (FOS) prebiotic fibre
  • A B-vitamin complex: thiamin, riboflavin, niacin, B6, folic acid, B12, biotin and pantothenic acid
  • Vitamins B6 and B12 contribute to normal energy-yielding metabolism and to the reduction of tiredness and fatigue
  • Riboflavin and niacin contribute to the maintenance of normal mucous membranes
  • Gluten-free, suitable for vegans and vegetarians
  • 30-day money-back guarantee

What is Pre + Pro 15?

Fifteen different strains of live cultures, a prebiotic fibre and a selected B-vitamin complex in a single daily serving. FOS is a type of dietary fibre the body does not break down itself. Every amount is printed on the label — no proprietary blends.

Nutritional information

Per serving (3 capsules, 1.95g): Energy 15kJ / 3.5kcal; Fat 16.5mg; Carbohydrate 834mg, of which sugars 0g; Protein 0g; Salt 0g; Niacin (B3) 16mg (100% NRV); Pantothenic acid (B5) 6.0mg (100% NRV); Riboflavin (B2) 1.4mg (100% NRV); Vitamin B6 1.4mg (100% NRV); Thiamin (B1) 1.1mg (100% NRV); Folic acid (B9) 200µg (100% NRV); Biotin 50µg (100% NRV); Vitamin B12 2.5µg (100% NRV); Fructo-oligosaccharides 600mg; Microbial strains 375mg. NRV = Nutrient Reference Value.

Food supplements are not a substitute for a varied, balanced diet and a healthy lifestyle. If you are pregnant, breastfeeding, taking medication or have a health condition, consult your GP before use.

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Who it's for

For people who want the strain count and the numbers, not a blend name.

One capsule with each meal, three a day. One bottle is a month. Give it thirty days before you judge it.

What's inside · per 3 capsules

Live cultures (15 strains)375 mg · 15 billion CFU
Fructo-oligosaccharides (FOS)600 mg
Niacin (B3)16 mg · 100% NRV
Pantothenic acid (B5)6 mg · 100% NRV
Riboflavin (B2)1.4 mg · 100% NRV
Vitamin B61.4 mg · 100% NRV
Thiamin (B1)1.1 mg · 100% NRV
Folic acid (B9)200 µg · 100% NRV
Biotin50 µg · 100% NRV
Vitamin B122.5 µg · 100% NRV
Strains: B. bifidum, L. acidophilus, L. rhamnosus, L. plantarum, B. breve, L. casei, B. longum, L. bulgaricus, L. salivarius, L. fermentum, L. paracasei, L. helveticus, L. gasseri, S. thermophilus. Also contains microcrystalline cellulose, magnesium stearate and silicon dioxide.
  • Vegan
  • Gluten-free
  • Non-GMO
  • No added sugar
  • No proprietary blends
  • Every amount stated

Why pre and pro in one capsule

The live cultures are the "pro"; the FOS fibre is the "pre" — a fibre your body doesn't break down itself. Most products give you one or the other. We put both in, state the CFU count and the strains, and add a B-vitamin complex at 100% of the reference value each. No blend names, nothing to decode.

How we compare

OctiTypical budgetTypical premium
Strains listed by name15Often 1–5Usually yes
CFU stated15 billionOften unstatedYes
Prebiotic fibre included600mg FOSRarelySometimes
B-vitamin complex8 vitamins, 100% NRVNoRarely
Price per day62p~30p~£1+
Money-back guarantee30 daysRarelyVaries

What to expect

Week 1

One capsule with each meal. Keep it in a cool, dry cupboard — no fridge needed.

Weeks 2–3

The routine's established. B6 and B12 contribute to the reduction of tiredness and fatigue.

Week 4

Judge it. Not for you? Use the guarantee.

A note from Gareth, founder

I built Octi in Edinburgh because I was tired of guessing what was actually in the capsule. Every amount is on the label. If it's not right for you, email me and I'll sort it.

Questions

When should I take it?
One capsule with each main meal, three a day. If that's awkward, take all three with one meal — consistency matters more than timing.
Does it need to be refrigerated?
No. Store it in a cool, dry place away from direct sunlight, with the lid on.
Can I take it with antibiotics?
Speak to your pharmacist. A common suggestion is to leave a gap of a couple of hours between the antibiotic and the capsule, and to keep taking it for a while after the course finishes.
Is it vegan?
Yes — vegan, gluten-free, non-GMO and free from added sugar and salt.
How long before I notice anything?
Give it thirty days of daily use before you decide. If it isn't for you, use the 30-day guarantee.
How do I cancel a subscription?
From your account page, any time, no minimum term. Or reply to any of our emails and a person will do it for you.

Food supplements are not a substitute for a varied, balanced diet and a healthy lifestyle. If you are pregnant, breastfeeding, taking medication or have a health condition, consult your GP before use.