Limited Time: Use code NEWYEAR to save up to 52% off your order!

Clean Label Project® Certified

No Junk Ingredients

Real Wholesome®

No Fake Sugars

Yellow hand icon holding a star with rays.

High Quality Ingredients

Blue globe with circular arrows around it, symbolizing recycling or global movement.

Eco-Friendly Refills

Clean Label Project® Certified

No Junk Ingredients

Real Wholesome®

No Fake Sugars

Yellow hand icon holding a star with rays.

High Quality Ingredients

Blue globe with circular arrows around it, symbolizing recycling or global movement.

Eco-Friendly Refills

Preferred By Over One Million Families Worldwide

Your Toddler Can't Poop. We Can Help.

Many toddler's constipation & bathroom accidents are caused by poor gut health. Our 3-in-1 combination of prebiotics, postbiotics, and probiotics can help making pooping easy and natural.

Just 2 gummies a day can help make poops softer & easier to pass.

Logo with text: 'clean label PROJECT. Clean. Pure. Science.' on a blue background.

Clean Label Project® Certified

Pink circular 'Non GMO' label with a leaf symbol in the center.

Non-GMO

No toxic ingredients like red dye 40

Made in The USA

Clinically Proven Results

Our 3-in-1 combination of scientifically-studied prebiotics, probiotics and postbiotics are proven to help improve common GI symptoms, while also lowering incidences and duration of GI illnesses.

+48%

Improvement In Constipation*

+44%

Improved Quality Of Life*

-66%

Fewer Sick Days Per Year*

Hear What Real Parents Like You Are Saying

Their kids were withholding, crying from belly pain, terrified of pooping just weeks ago.

Child eating berries from a bowl with probiotic packet beside.

“Poop battles used to run our entire day, from meltdowns to accidents. Now bathroom time is calm, predictable, and no longer something we stress about.”

Tiffany W.

“Within just a few weeks, my toddler became more regular and noticeably more comfortable. The constant belly complaints finally stopped, and we all sleep better.”

Lennie S.

“We went from daily belly aches, withholding, and surprise accidents to smooth, predictable mornings. It’s been a huge relief for our child and for us as parents.”

Jamie T.

Child eating fruit salad next to a packet labeled 'first day' probiotics.

“This was the first product that actually supported my child’s gut long term instead of acting like a quick fix. We saw real, lasting improvement.”

Julie R.

The Truth About Why Today's Toddlers Struggle In The Bathroom

Your child’s constipation isn’t just about their diet. It’s often the result of an imbalanced gut microbiome that lacks the prebiotics, probiotics, and postbiotics needed to support healthy, comfortable digestion.

THE PROBLEM

Close-up of thinning hair on the top of a person's head.

Toddlers commonly struggle with constipation, stool withholding, belly pain, and accidents because their digestive system, routines, and emotional regulation are still developing.

Low fiber diets

Immature gut motility

Routine disruptions

Limited body awareness.

Child in a bathroom holding a roll of toilet paper.
Sippy cup, probiotic bag, plate with fruit, cheese, crackers on kitchen counter.

THE NATURAL SOLUTION

Our combined probiotic, prebiotic, and postbiotic solution helps address toddler constipation at its root by supporting long-term gut health rather than just temporary relief.

Softer, easier-to-pass stools.

Healthier gut microbiome

More regular bowel patterns

Gentle, daily support

Results You Can Count On

Softer, Easier Poops

Safe, Longterm Support

Stress-Free Bathroom Time

Overall Improved Health

Help Your Toddler Poop Better

The 3-in-1 Toddler's Pre+ Post+ Probiotic

4.8/5.0

Potty problems aren’t just a training issue, they’re often a gut issue. Helping your toddler’s gut grow healthy, strong, and balanced is one of the best things you can do for their digestion, behavior, immunity, and confidence.


✅ Prebiotics = nourish the good bugs
✅ Probiotics = add more good bugs
✅ Postbiotics = the gut-balancing byproducts that actually do the work

Ending Soon ⚡ New Year Sale!
Use the coupon code:
NEWYEAR
Up to 56% OFF
at checkout to get full discount

Step 1: Delivery Options

Step 2: Quantity 30 Servings Per Bottle

Enjoy free shipping on your first subscription month.
⚡ New Year Sale Lightning Deal ⚡
Unlock Your Free Gift
Get 12 servings of our new Rapid Hydration Electrolyte FREE with orders over $75.
Rapid Hydration Electrolyte free gift
$25.00 FREE
You are $75.00 away, keep going!
$75
Limited Time Only! Save 51% On Top Add-Ons
Bonus Cyber Monday add-on

Toddlers' Multivitamin

Nutritional support for picky eaters ages 2-3.

$39 $19
0
brain health supplement

Women's Multivitamin

All-day support for exhausted women.

$39 $19
0
probiotic

Men's Multivitamin

Power-packed nutrition for men.

$39 $19
0
Shipping
$5.00  FREE
Free Gift
$25.00  FREE
Subtotal
$0.00  $0.00
You are saving a total of $0.00!
When using code NEWYEAR at checkout

45 Day Money-Back Guarantee¹

Blue badge with text 'NO JUNK' and phrases about no artificial ingredients.

No Junk Ingredients

Free of fake sugars, fillers and fad ingredients.

Logo with text: 'clean label PROJECT. Clean. Pure. Science.' on a blue background.

Clean Label Project® Certified

Repeatedly Tested For Potency & Purity.

Illustration of a gold shield with a hexagonal design.

45 Day Money-Back Guarantee

If you don't see results, you'll get your money back. It's as simple as that.

(4.8) 6,231+ Reviews from Happy Parents

Gray hair fibers container for men with 'Full Hair Club' branding.

What Makes First Day Stand Out

Combined prebiotics, probiotics & postbiotics.

Safe for daily use.

Gentle on sensitive tummies.

A yummy gummy that toddlers love.

Supports healthy habits & routines.

Blue bird icon next to the text 'first day' in blue.

OTHERS

Customer Reviews

Based on 198 reviews
87%
(173)
8%
(15)
2%
(3)
1%
(2)
3%
(5)
P
Page Y.
Grandkids love them

Grandkids love them. I love that they’re clean.

L
Lena L.
no more accidents

We were having numerous #2 accidents at school. Not a full accident, just skid marks and occasionally one turd (petrified by the time he came home).
We were furious, how could this guy keep doing this? He knows how to wipe and go when it's time...
BUT that all changed after we got him on this probiotics. We already use the daily vitamins which we all love. It's amazing for me to say but I can't remember the last time he had an accident. His underwear is clean everyday and wiping is less messy for him. I've always been a believer in probiotics as I take them myself, but super glad for this kid option. PLUS he loves taking them each night after dinner.

S
Sarah A.
Easy and effective

My entire family takes the multivitamin and probiotics. Family of 6. It has been an easy and effective way for us to enhance wellness. No one complains about taking them and it gives this momma relief to know I am supporting our nutrition and immunity. Before purchasing, it was great to have the reviews to read to help with the decision to purchase. I am so happy with our regimen and we are about 6 months or so in. I also spoke to customer service about finding the best bundling package to make it more cost effective with such a large family. The customer service support is just beyond. Personable, fast, effective and solved my concerns/issues. I am very impressed with this company. Great product and service.

M
Michelle P.
Awesome!

We love that this is immune support and probiotic in one! And my toddler loves them! Finally a supplement my toddler loves!

J
Joanna F.
My kid loves them

This has been so helpful in getting probiotics into my middle schooler with zero complaints! He actually asks for them!

**We offer a 45-day satisfaction guarantee for returns. It covers 45 days starting from the day that you place an order and includes only the very first purchase of any product so that families can try our gummies - for any reason you aren't happy with your vitamins. Please note that we will refund up to $100 so that you can try up to 3 bottles of our gummies risk free. If you would like to order more than 3 bottles in your first order, we recommend that you ordering less so that your family can try them first. Thanks so much for your understanding!


1. Based on a survey of First Day customers


*These statements have not been evaluated by the Food and Drug Administration.

This product is not intended to diagnose, treat, cure or prevent any disease.