FIRST DAY Teens’ Gut Sustainer Tribiotic Gummies – 3-in-1 Prebiotic, Probiotic & Postbiotic Supplement – Supports Digestive, Skin, Oral & Immune Health, Nutrient Absorption & Growth – 30-Day Supply
Condition: New
Buy Now, Pay Later
As low as
$9.16
/ mo
Learn more
- – 6-month term
- – No impact on credit to apply
- – Instant approval decision
- – Secure and straightforward checkout
Ready to go? Add this product to your cart and select a plan during checkout.
Payment plans are offered through our trusted finance partners Klarna, Affirm, Afterpay, Apple Pay, and PayTomorrow. No-credit-needed leasing options through Acima may also be available at checkout.
Learn more about financing & leasing here.
Selected Option
Free shipping on this product
Non-returnable item
Learn more
Non-returnable due to Food safety reasons
View our full returns policy here.
Availability:
Only 10 left in stock, order soon!
Arrives
Thursday, Apr 23
Recently Viewed
Size: 60 Count (Pack of 1)
Style: Pouch
Features
- 3-in-1 Tribiotic for a Healthy Gut: Made with clinically studied pre+, post+, and probiotics to support a balanced gut microbiome. Just 2 tribiotic gummies a day fight bathroom struggles and stomach aches. The clinically studied prebiotic, Livaux, supports regular bowel movements.
- Glowing Skin from Within: Is your teen struggling with skincare? Say hello to glowing skin with First Day! Our tribiotic gummy is made with FloraSMART (heat-treated Lactobacillus Casei 327), a clinically studied postbiotic that supports healthy skin.
- Supercharges Immunity + Nutrient Absorption: Our 3-in-1 pre+, post+, and probiotic supports the gut microbiomes ability to absorb nutrients from their diet and vitamins. The clinically studied probiotic, Bacillus coagulans SNZ 1969, supports a strong immune system.
- Loved by Teens, Trusted by Parents: First Day gummies are delicious, made with natural flavors, and easy to add to your teens daily routine. Parents love that First Day has ZERO artificial sweeteners, only 2g of sugar, and is free of gelatin, making it easy to chew and braces-friendly!
- Free of the Top 9 Allergens, Produced to the Highest Standards: Our vegan tribiotics are dairy-free, soy-free, egg-free, gluten-free, peanut-free, tree nut-free, fish-free, shellfish-free and sesame-free; meticulously sourced, made, and tested for purity and potency with no fillers, artificial colors, flavors, sweeteners, GMOs, or fad ingredients.
- For People Who Demand Better: At First Day, we're all about fresh starts, healthy lives, and wise choices; together, we can turn good nutrition into a family tradition and help raise the next generation of healthy, happy families.
- Our Satisfaction Guarantee: We are dedicated to offering top-quality tribiotics and ensuring your complete satisfaction. If you are not fully satisfied with your purchase, please contact us within 45 days. To do so, click the Get product support button on your orders page and then visit support website. Our customer service team will be happy to assist you from there.
Package Dimensions : 7.99 x 5.83 x 0.91 inches; 0.07 ounces
Date First Available : August 15, 2024
Manufacturer : First Day
Best Sellers Rank: #32,709 in Health & Household (See Top 100 in Health & Household) #320 in Probiotic Nutritional Supplements
#320 in Probiotic Nutritional Supplements:
Customer Reviews: 4.4 4.4 out of 5 stars (106)
Brand Name: FIRST DAY
Primary Supplement Type: Probiotic
Item Form: Gummy
Age Range Description: Teen
Container Type: Bottle
Dosage Form: Gummy
UPC: 850018469333
Manufacturer: First Day
Unit Count: 60.00 Count
Item Weight: 2 Grams
Number of Items: 1
Flavor: Teens’ Gut Sustainer Tribiotic Gummies
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Thursday, Apr 23
This item is non-returnable:
Non-returnable due to Food safety reasons
View our full returns policy here.
Non-returnable due to Food safety reasons
View our full returns policy here.
- Klarna Financing
- Affirm Pay in 4
- Affirm Financing
- Afterpay Financing
- PayTomorrow Financing
- Financing through Apple Pay
Learn more about financing & leasing here.
Similar Products
Top Amazon Reviews
Size: 60 Count (Pack of 1)
Style: Pouch
Great product! My teen enjoys taking these daily, and I’ve noticed real improvement in digestion and overall gut health.
Reviewed in the United States on October 17, 2025 by Sharing Things I Love
Size: 60 Count (Pack of 1)
Style: Bottle
My 14 year old says he notices a positive difference taking these.
Reviewed in the United States on March 25, 2026 by Jamie Pack
Size: 60 Count (Pack of 1)
Style: Pouch
My sons live the flavor!
Reviewed in the United States on February 12, 2026 by Bsmiff
Size: 60 Count (Pack of 1)
Style: Pouch
These vitamins have been a true game-changer for us! My older daughter has allergies and often struggles with atopic dermatitis and even some psoriasis. These vitamins really helped improve her digestive health and restored the balance of essential gut bacteria—not just probiotics, but also prebiotics and postbiotics, which is so important. Within 2–3 months, her skin dryness noticeably decreased. I also bought the multivitamins from the same brand for her, and now I’ve ordered these for my younger daughter too. The ingredients are completely natural and made from organic sources, which was a major deciding factor for me. Plus, these gummies taste great—my kids love them and take them without any fuss.
...
show more
Reviewed in the United States on September 23, 2025 by Oleh
Size: 120 Count (Pack of 2)
Style: Pouch
My 15 year old loves them. I can’t say I have seen significant behavioral or mood changes but even he appreciated the quality ingredients and taste!
Reviewed in the United States on June 29, 2025 by Lindsay Smith
Size: 60 Count (Pack of 1)
Style: Bottle
This stuff is good . It improved my daughter’s pH levels . I highly recommend this for your teens.
Reviewed in the United States on September 3, 2025 by Hope Coleman
Size: 60 Count (Pack of 1)
Style: Pouch
The 3 stars fo the bag! It’s not convenient for a teen to open and close the bag. Otherwise they’re good.
Reviewed in the United States on February 10, 2026 by Zarajar
Size: 60 Count (Pack of 1)
Style: Pouch
I’m in love with these vitamins for my preteen daughter. I can see a difference in my daughter’s mood. She has regular bowel movements which was a huge problem before!
Reviewed in the United States on October 16, 2025 by Mika