Frequently asked questions.

Ordering and subscriptions.

When does it ship, and how do I get it?

The first box ships January 2027.

Choose a purchase option. You are charged today, and your first box ships January 2027. Subscriptions renew at the price and billing interval you choose until canceled. Cancel before your first shipment for a full refund.

See the protocol
How will I be able to subscribe?

A subscription renews at the billing interval you choose.

Choose monthly, 3-month, or 6-month, or buy once without a subscription. You see the recurring price, billing cadence, first-charge timing, and cancellation terms before checkout.

What if it does not work for me?

You are covered by a 30-day money-back guarantee.

If it is not right for you, contact us within 30 days of your first delivery for a full refund of that first order's product purchase price. The window starts when your first box arrives, not when you order.

How does shipping work?

Your protocol ships straight to your door.

Standard shipping is free on U.S. orders.

Founding subscriptions ship first from serenebiotics.com in January 2027. You can also order on Amazon when we ship.

How do I cancel, pause, or skip a delivery?

Manage future deliveries from your account.

Manage everything from your account: sign in, open Manage subscription, and skip a delivery, pause, switch between the morning and evening formulas, or cancel any time. Prefer a hand? Email support@serenebiotics.com.

Go to your account
Where can I see the current plan benefits?

Review the plan details before you choose.

The product page shows the price, billing interval, and renewal terms before checkout. For recurring billing and cancellation details, read the subscription terms.

Using the formulas.

How do I take it?

Choose the morning formula, the evening formula, or both. No pills, no capsules.

Mix one Daily Calm Focus stick pack with 8 fl oz of cold or room-temperature water in the morning. Prepare one Nightly Rest & Restore stick pack the same way 30–60 minutes before bed.

How to use the formulas
How do they taste?

Peach Mango to start the day. Hibiscus Vanilla to wind down.

Both are flavored powders designed to be stirred into cold or room temperature water.

Do I need both, or can I take just one?

You can choose either formula on its own or both together.

Both contain DR7 and Bimuno GOS. Choose the morning formula, the evening formula, or the pair according to the routine you want.

Can I take it with coffee?

The morning formula is caffeine-free.

Prepare one Daily Calm Focus stick pack with 8 fl oz of cold or room-temperature water.

The Daily Calm Focus box with a Daily Calm Focus stick pack.

Safety and ingredients.

Any allergens?

One allergen to flag: milk.

Our Bimuno® GOS prebiotic is derived from lactose, so the protocol contains milk. It is gluten free, made with Non-GMO ingredients, caffeine-free in the morning, and melatonin-free at night.

How is it tested before it ships?

Our plan for independent batch testing.

Independent batch testing is planned with Eurofins before release. Completed batch results will be published here when available.

Batch testing
What if I am pregnant, nursing, or on medication?

Talk to your healthcare provider before you start.

That is the right call with any supplement, and we would rather you ask than guess. If you ever feel unwell, stop use and call us at (888) 470-9730.

Is it safe?

Suitability depends on your health, medications, and allergies.

The Bimuno prebiotic is made from lactose and contains milk. If you are pregnant, nursing, taking medication, managing a medical condition, or considering it for anyone under 18, speak with a qualified clinician before use.

Are there stimulants?

None.

Daily Calm Focus contains no caffeine. Nightly Rest & Restore contains no melatonin. Individual responses vary.

What is in it?

The same probiotic and prebiotic in both, then L-theanine in the morning and magnesium at night.

Morning holds L-theanine 200 mg, B Vitamins, the DR7 strain, and Bimuno prebiotic. Evening contains magnesium glycinate, providing 200 mg of elemental magnesium, with the same gut-brain base.

See ingredients and amounts
What did you deliberately leave out?

No caffeine, no melatonin, no ashwagandha.

We kept the list short on purpose, so each ingredient has a reason to be in there. The Supplement Facts panel on every product page lists all of them with their amounts.

The limits of the evidence
Can I verify the batch I receive?

Batch lookup is planned for the first released lots.

Independent batch testing with Eurofins is a planned requirement before release. Completed batch results will be published here when available.

Research and expectations.

Does it actually work?

The ingredients have published research behind them.

No clinical trial of the finished Serene Biotics formulas has been completed. Ingredient findings do not guarantee individual results. Your first order has a 30-day money-back guarantee from delivery.

Browse the study library
How fast will I feel something?

Responses vary. Ingredient research measures different outcomes over different time periods.

These are study time points, not a promised timeline for the finished formulas.

Single doseSome L-theanine studies assess a single dose
Week 1GOS digestive-comfort measures in Vulevic 2018
Weeks 2-4L-theanine and magnesium studied over four weeks
Weeks 8-12DR7 outcomes assessed over 8 to 12 weeks
Compare ingredient-study timelines
What is the gut-brain axis, in plain terms?

It is the two-way line between your gut and your brain.

Both formulas contain ingredients studied in this area. The research on each ingredient is distinct from evidence for the finished formulas.

Read the gut-brain context
What distinguishes the two formulas?

Morning adds L-theanine and B vitamins. Evening adds magnesium.

Both contain L. plantarum DR7 and Bimuno GOS. Morning adds L-theanine and five B vitamins; evening adds magnesium. The cited studies do not establish that GOS selectively feeds DR7.