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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

  • Based on 115 reviews
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Availability: Only 10 left in stock, order soon!
Fulfilled by Amazon

Arrives Tuesday, Aug 18
Order within 15 hours and 50 minutes
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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


Item model number ‏ : ‎ TGS-P-1


Date First Available ‏ : ‎ August 15, 2024


Manufacturer ‏ : ‎ First Day


Best Sellers Rank: #40,114 in Health & Household (See Top 100 in Health & Household) #382 in Probiotic Nutritional Supplements


#382 in Probiotic Nutritional Supplements:


Customer Reviews: 4.5 4.5 out of 5 stars (115)


Brand Name: FIRST DAY


Primary Supplement Type: Prebiotic, Probiotic


Item Form: Gummy


Diet Type: Gluten Free, Vegan, Vegetarian


Product Benefits: Gut Health Support


Age Range Description: Teen


Container Type: Bag


Dosage Form: Gummy


Model Name: TGS-P-1


Supplement Formulation: Multi-Supplement


UPC: 850018469333


Manufacturer: First Day


Manufacturer Part Number: TGS-P-1


Model Number: TGS-P-1


Unit Count: 60.00 Count


Item Weight: 2 Grams


Number of Items: 1


Total Servings Per Container: 30


Package Size Name: Probiotics & Prebiotics for Teens - 60 Gummies


Flavor: Teens’ Gut Sustainer Tribiotic Gummies


Dose Release Method: Immediate Release


Material Features: Cruelty Free, GMO Free, No Artificial Colors, No Artificial Flavors, No Artificial Preservatives, No Artificial Sweeteners


Pill Coating: Uncoated


Allergen Information: Corn-Free, Crustacean Free, Dairy Free, Egg Free, Fish Free, Gluten Free, Lactose Free, Milk Free, Molluscs Free, Mustard Free, Nut Free, Peanut Free, Preservative-Free, Sesame Seeds Free, Shellfish Free, Soy Free, Sulphites Free, Sulphur Dioxide Free, Tree Nut Free, Wheat Free


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Tuesday, Aug 18

This item is non-returnable:

Non-returnable due to Food safety reasons

View our full returns policy here.

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Leasing options through Acima may also be available during checkout.

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Top Amazon Reviews


  • Excellent quality
Size: 120 Count (Pack of 2) Style: Pouch
Great price and quality product. I love that it’s a two- pack. Saves time and repeated shopping for something that’s taken each day.
Reviewed in the United States on May 28, 2026 by Kelly O

  • Yummy
Size: 60 Count (Pack of 1) Style: Bottle
My kids love the taste of these vitamins. Not sure if they do anything, but the taste is great.
Reviewed in the United States on May 5, 2026 by Beckster loves books

  • Difference Noticed in First Week!
Size: 120 Count (Pack of 2) Style: Pouch
This is the first week using these. Notice a difference in gut health already. Prebiotic WITH probiotics are so hard to find. Although it's in a gummy, they have very natural ingredients. The gummy also helps the nausea sometimes experienced with pill form.
Reviewed in the United States on June 10, 2026 by NSP

  • These vitamins have been a true game-changer for us! These vitamins have been a true game-changer for us!
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 Reviewed in the United States on September 23, 2025 by Oleh

  • I think it works…
Size: 120 Count (Pack of 2) Style: Pouch
Haven’t noticed major changes, but I think this is a decent quality probiotic
Reviewed in the United States on April 8, 2026 by M.A.M

  • Positive difference
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

  • Taste great and really works !
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

  • Poor Texture
Size: 60 Count (Pack of 1) Style: Bottle
Arrived clumped together.
Reviewed in the United States on November 23, 2025 by Keisha Atlee

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