
A cool science experiment that’s also delicious.
Our Japanese-language reporter Tuku Inui found an interesting fun fact while surfing the net and decided to try it out: making glowing gummies at home. The secret ingredient was Oronamin C, a popular carbonated drink in Japan that has a bunch of vitamins and amino acids and once had one of our reporters in its tasty clutches. Here’s how Tuku made them.
Ingredients and supplies:
1 bag gummies mix
1 teaspoon Oronamin C
30 grams (1 ounce) water
Molds to put gummies in (silicone is recommended)
Microwave-safe dish
Microwave
If you’re in Japan, you can get a gummies mix at Daiso in one of three flavors: apple, grape, and strawberry. Note that it’s a popular item, though, so you may have to visit a few branches before finding one that’s not sold out! Tuku managed to find some apple-flavored gummies mix. There are instructions on the package, albeit in Japanese, so here they are in English:
First, add all of the gummies mix and water to a microwave-safe dish. Mix well.
If you want to make the gummies glow, add one teaspoon of Oronamin C (this instruction isn’t on the package, by the way). Mix together.
Put in the microwave on a 500-Watt setting for 60 seconds.
If your mixture looks like beer with some head on it, you can move on to the next step. Otherwise, keep microwaving until it looks like this.
Mix one more time. The bubbles will disappear quickly as you mix.
Add the mixture to your molds.
Once they’re full, put them in the refrigerator until they’ve reached a gummy-like texture.
Tuku let them harden in the fridge overnight and tried the glowing experiment the following day. Removing them from the molds proved to be a chore as they were very solid and stuck to the sides, so we highly recommend using something flexible like silicone.
▼ It might even be helpful to lightly grease the molds before pouring in your mixture!
Tuku tried the glowing experiment using a blacklight, but you can also use anything that emits UV light, like a gel nail curing machine. Get ready to see what they look like. (Warning: bright flash in the following GIF)
▼ Ta da! Glow-in-the-dark!
Tuku was blown away by the results. If you’re wondering how this is possible, it’s supposedly due to the vitamin B2 included in Oronamin C. This particular ingredient responds to UV light by, well, glowing. And as a bonus, they were pretty tasty.
▼ Tuku is considering trying the other gummies mix flavors available.
So if you’re looking to kill some time in Japan with a fun science experiment, Tuku highly recommends this for the wow factor. It also doubles as a snack–perfect! Pick up some magic gummies, too, while you’re waiting for the glowing gummies to harden.
Photos ©SoraNews24
● Want to hear about SoraNews24’s latest articles as soon as they’re published? Follow us on Facebook and Twitter!
[ Read in Japanese ]












We learn how to make tofu with this at-home make-your-own tofu kit【SoraKitchen】
Japanese restaurant chain shows us how to make katsudon in three minutes【SoraKitchen】
We can’t stop eating this chicken ramen noodle and chocolate snack we made【SoraKitchen】
How to turn McDonald’s chicken nuggets into tasty katsudon in five minutes【SoraKitchen】
We try a method for making ice cream that doesn’t require a freezer【SoraKitchen】
Tokyo subway installing new ticket gates that don’t accept payment through Suica or other IC cards
New Shinkansen luggage drop-off system begins in Japan, making train travel even easier
99-year-old woman rescued while attempting to climb Mt. Fuji
Which country’s foreign tourists spend the most money per-person in Japan? Hint: Not the U..S. or China
Starbucks Japan adds a new summer Frappuccino to the menu, but is it as refreshing as it looks?
Kodama Shinkansen trains on popular Japan route get a whole new look this winter
Starbucks Japan releases a miniature display rack so you can create your very own store at home
Foreign hiker on Mt. Fuji loses consciousness and dies, becoming climbing season’s second fatality
Eight great words for talking about summer in Japan in Japanese
Studio Ghibli releases anime T-shirts that pay homage to one of Hayao Miyazaki’s most personal films
Japan now has human refrigerators inspired by Japanese vending machines
Hatsune Miku collaborates with Hokusai’s art in new Vocaloid ukiyo-e illustration series [Pics]
Japanese convenience store releases Japanese convenience store-flavor fried chicken
Family Mart’s new Tokyo flagship convenience store doesn’t feel convenient, but is that a problem?
Starbucks Japan releases new Discovery Series collection celebrating local regions and traditions
Teen girl in Japan refuses to be victim, personally escorts train pervert to police for arrest
Is Japan’s tourism boom slowing down? Foreign visitor numbers fall for first time in five years
Starbucks Japan releases exclusive new Bearista collection…with beary cute details
Studio Ghibli has a new anime out, and there’s only one place in the world where you can see it
Japan announces sudden 400-percent increase in visa fees for foreigners entering the country
Salomon releases Japan-exclusive Mt. Fuji hiking gear that doubles as an amazing souvenir
Japan triples departure tax, foreign tourists and locals now must pay more to leave country
Japan launches first overnight Shinkansen bullet train between Tokyo and Osaka this summer
Family Mart opens new “Famima” flagship store in Tokyo that’s like a tourist attraction
Japan’s human washing machines will go on sale to general public, demos to be held in Tokyo
Starbucks Japan releases new drinkware and goods for Valentine’s Day
Starbucks Japan releases new sakura goods and drinkware for cherry blossom season 2026
Japan’s newest Shinkansen has no seats…or passengers [Video]
Japanese ninja certification exam attracts 131 candidates from Japan and abroad
Put sesame oil in your coffee? Japanese maker says it’s the best way to start your day【Taste test】
Japan reportedly adding Japanese language skill requirement to most common foreigner work visa
How to make a hot pudding drink with Japanese purin【SoraKitchen】
Here’s the oldest recipe for Japanese curry in existence, and how it tastes【SoraKitchen】
How to use leftover Japanese curry: We test out a recipe for curry bread quiche【SoraKitchen】
Our Japanese reporter falls in love with “Lebanese-style gyudon”【SoraKitchen】
We put Japanese custard pudding on toast and it’s the best thing ever【SoraKitchen】
We try cooking yakisoba with real Japanese buckwheat soba【SoraKitchen】
Stop what you’re doing and go make Japanese-style s’mores right now with our recipe!【SoraKitchen】
Here’s what happens when you mix 75 types of Japanese instant curry together【SoraKitchen】
3 quick tips to turn your bowl of home-made noodles into a restaurant-beautiful dish【SoraKitchen】
How to make an awesome Japanese summer dessert using only things you can buy at Daiso【SoraKitchen】
Japan’s new fruit sandwiches turn the concept inside-out, we make them even better【SoraKitchen】
We try out Japanese candy maker’s recipes for how to make hard candy drinkable【SoraKitchen】