Rep-Cal Calcium with D3 Starter Guide: 9 Options 2026

The Rep-Cal Calcium with Vitamin D3 Ultrafine Powder 3 Pack is designed for owners of bearded dragons, geckos, chameleons, turtles, frogs and other insect eating herps. It is ideal if you dust feeders regularly and want a proven daily calcium for bone health support.

The standout is the ultrafine grind made from 100 percent natural oyster shell calcium carbonate with added vitamin D3. In practice it clings evenly to crickets, dubia roaches, mealworms and chopped produce, so animals actually ingest it with every bite.

Each 3.3 oz container dispenses a fine, consistent powder that is easy to control for light dusting. The phosphorus free formula is clean and balanced for absorption, and having three bottles keeps a fresh supply ready for different enclosures.

It is not a complete multivitamin on its own, so most keepers pair it with a reptile multivitamin for full coverage. You also need to follow the dusting directions carefully to avoid overuse of D3, especially for species already receiving strong UVB.

Overall, this is a simple, effective staple with a long track record in zoos and home collections. If you want reliable calcium with D3 that sticks well and suits all reptiles and amphibians, this 3 pack is an excellent choice.

For insects, place feeders in a bag or container with a small amount of powder and shake slowly until completely covered. Feed immediately so the ultrafine coating stays on the insects.

For fresh foods, mix approximately 1/2 tablespoon of Rep-Cal with 1/2 tablespoon of multivitamin per pound of vegetables, fruits or pastes. Offer lightly dusted meals as part of a regular feeding schedule.

Brand: Rep-Cal, Model Number: 200, Form: Ultrafine Powder. Source: 100 percent natural oyster shell calcium carbonate with vitamin D3, phosphorus free.

Unit Count: Three 3.3 oz containers, total 9.9 oz. Intended for: All reptiles and amphibians. Manufacturer: Rep Cal Research Labs.

Rep-Cal Phosphorus Free Calcium with Vitamin D3 is an ultrafine powder supplement designed for all reptiles and amphibians. It is built for owners of bearded dragons, leopard geckos, chameleons, turtles and frogs who need reliable daily calcium support.

Its standout feature is the 100 percent natural oyster shell calcium carbonate combined with Vitamin D3 for better absorption. In real world use, the ultrafine grind sticks tightly to crickets, dubia roaches and chopped produce, so pets get consistent nutrition with every bite.

Each 3.3 oz jar contains a light, smooth powder that dusts evenly without clumping when applied correctly. The Pack of 6 format is practical for keepers with multiple enclosures, breeding groups or rescue collections who go through supplement quickly.

The main drawback is that Vitamin D3 requires careful dosing, so over dusting should be avoided, especially if you already use UVB lighting and other supplements. Some picky eaters may also notice heavy coatings on food, so a light, even dusting works best.

Overall, this is a proven, zoo trusted calcium that delivers excellent adhesion, purity and bulk value. If you want a simple, phosphorus free solution for long term bone health, this pack is an easy recommendation.

Brand: Rep-Cal, Model Number: 200, Form: Ultrafine Powder, Flavor: Unflavored.

Calcium Source: 100 percent natural oyster shell calcium carbonate, phosphorus free with Vitamin D3.

Unit Count: Six 3.3 oz jars, Total Weight: 19.8 ounces, Dimensions: 3 x 3 x 3 inches per jar.

Compatibility: All reptiles and amphibians, Use: Insect dusting or mix with vegetables, fruits and pastes.

For insects, place feeders in a bag with a small amount of powder and shake slowly until completely covered. Feed immediately to ensure maximum intake.

For fresh foods, mix approximately 1/2 tablespoon Rep-Cal with 1/2 tablespoon herptivite per pound of vegetables, fruits or pastes. Adjust lightly based on species needs and UVB exposure.

Rep-Cal 52296 is a phosphorus-free calcium powder with added vitamin D3 designed for reptiles and amphibians. It is made for owners of tortoises, lizards, geckos, bearded dragons, frogs and other indoor herps that need steady calcium support.

The formula uses calcium carbonate from natural oyster shell with added D3 to aid absorption. Owners report good acceptance, including dart frogs and tortoises, when insects are lightly dusted or produce is mixed for feeding.

The fine powder format coats feeder insects evenly with a slow shake in a bag. The compact 5 oz container is easy to store and dispense, and manufacturing in the United States adds confidence in consistency.

It is not intended as an all in one vitamin, since Rep-Cal recommends a 1 to 1 mix with Herptivite for complete supplementation. The powder can be a little dusty during dusting, and texture expectations may vary for very tiny feeders.

For keepers looking for a simple, phosphorus-free calcium plus D3 powder for daily dusting and mixing, this is a practical choice. It is especially useful for indoor setups where UV exposure and dietary calcium may be limited.

For insects, mix Rep-Cal and Herptivite in a 1 to 1 ratio in a plastic bag, add insects and shake slowly until fully coated. Feed immediately so the powder stays on the insects.

For salads and pastes, mix approximately 1/2 tablespoon of Rep-Cal with 1/2 tablespoon of Herptivite per pound of food and stir thoroughly. This helps distribute calcium and vitamins evenly through the meal.

Use regularly as part of a balanced feeding routine. No other calcium supplementation is required when used as directed.

Brand: Rep-Cal, Model: 52296, Form: Fine powder, Item Type: Calcium with Vitamin D3. Unit Count: 5 ounces in a compact dispensing container.

Source: Calcium carbonate from natural oyster shell, phosphorus-free with added vitamin D3 to aid absorption. Flavor: Other, Allergen Info: Nut Free.

Target Species: Reptile and amphibian, Specific Use: Indoor feeding supplementation. Manufacturer Part Number: 100, UPC: 788286001002.

Rep-Cal SRP00200 is a phosphorus-free calcium powder with vitamin D3 made for reptiles and amphibians. It is built for owners of bearded dragons, leopard geckos, chameleons, turtles and frogs who need reliable daily calcium support.

Its standout formula uses 100 percent natural oyster shell calcium carbonate with added vitamin D3 to aid absorption. In real world use, the ultrafine texture sticks evenly to crickets, mealworms and chopped produce for consistent intake.

Design is simple and practical, with a flavorless fine powder in a compact, easy to shake jar. The powder covers feeders completely without clumping, which makes dusting fast and helps picky eaters accept supplemented food.

The main drawbacks are the small jar size for large collections and the need for careful D3 management. Since it contains vitamin D3, it should not be combined blindly with other D3 products, and heavy handed shaking can over dust feeders.

Overall, this is a trusted, easy to use staple for reptile calcium care. If you want a clean, phosphorus-free powder that coats well and supports bone health, this is an excellent choice.

Product: Rep-Cal SRP00200 Calcium Ultrafine Powder with Vitamin D3, Model Number 200. Form: Flavorless fine powder for dusting insects, vegetables, fruits and pastes.

Source: 100 percent natural oyster shell calcium carbonate, phosphorus free with added vitamin D3. Target species: Reptile and amphibian, suitable for dragons, geckos, iguanas, chameleons, turtles and frogs.

Size and build: 3.3 ounce jar, measures 2.8 x 2.8 x 2.3 inches. Nut free formula, made for regular supplementation as part of a balanced diet.

For insects, place feeders in a bag or container with a light dusting of powder and shake slowly until completely covered. Feed immediately so your reptile gets full calcium coverage before the insects clean themselves.

For vegetables, fruits and pastes, mix approximately 1/2 tablespoon Rep-Cal with 1/2 tablespoon multivitamin per pound of food as directed. Use as part of a regular feeding schedule and adjust frequency by species, age and UVB exposure.

Rep-Cal Phosphorus Free Calcium with Vitamin D3 is an ultrafine dusting powder made for reptiles and amphibians. This pack includes two 3.3 oz jars, designed for owners who regularly supplement feeder insects, salads and fruit mixes. It is a practical choice for bearded dragons, geckos, chameleons, turtles, frogs and other captive herps.

The standout feature is the ultrafine, phosphorus free calcium carbonate sourced from 100 percent natural oyster shell, plus added vitamin D3 to support absorption. In daily use, the fine texture sticks evenly to crickets, dubia roaches, mealworms and chopped vegetables without heavy clumps. That means more consistent calcium intake and easier support for healthy bone development.

The powder comes in sturdy, easy to shake jars that make light dusting quick and mess free. Texture is smooth and uniform, so a small amount goes a long way and coats food completely with a gentle shake. The unflavored formula blends well into pastes and salads when mixed as directed with a multivitamin like Herptivite.

There are a few limitations to consider. Because it contains vitamin D3, it requires careful dosing and should not be combined with other D3 supplements unless directed. Heavy dusting can change texture and taste, so picky eaters may need a lighter coating and gradual introduction.

Overall, Rep-Cal Ultrafine Calcium with D3 remains an industry standard for good reason, trusted by zoos and hobbyists for over 15 years. If you need a reliable, easy to use calcium supplement for routine dusting, this two pack is a smart, long lasting option for reptile and amphibian care.

Brand: Rep-Cal, Model Number: 200, Form: Ultrafine Powder, Flavor: Unflavored

Calcium Source: 100 percent natural oyster shell calcium carbonate, phosphorus free with vitamin D3

Unit Count: 6.6 ounce total as pack of 2 x 3.3 oz jars, Dimensions: 3 x 3 x 3 inches

Use: Dust insects by shaking lightly until coated, or mix 1/2 tablespoon with 1/2 tablespoon multivitamin per lbs of food as directed

Nextdia Liposomal Calcium AKG 1500mg with Vitamin D3 K2 is a daily calcium supplement made for both women and men. It is aimed at adults who want to maintain bone strength, support joints and fill gaps from diet alone.

Its standout feature is the liposomal Calcium AKG blend paired with D3 and K2 for absorption and utilization. Users report feeling more comfortable staying consistent, with some noting better joint comfort and a clear difference when they pause use.

The design focus is comfort and convenience, with small capsules and a two capsule serving. The format is far easier to swallow than traditional large calcium tablets, which makes it simpler to stack with other vitamins.

The main drawback is that calcium results are slow and not instantly visible. Bone density changes take months to show, so patience and consistent daily use are needed to judge real progress.

Overall, this is a smart pick for anyone avoiding horse pills but serious about bone support. With its thoughtful formula and user friendly size, it earns a strong recommendation for long term daily routines.

Brand: Nextdia, Form: Capsules, Strength: 1500mg Calcium AKG with Vitamin D3 and K2.

Serving: 2 capsules daily, Package Size: 4.49 x 2.24 x 2.2 inches, 4.97 ounces.

Category: Calcium Mineral Supplement for women and men focused on bone and joint support.

Organics Ocean Better Calcium is a plant based calcium supplement made from Icelandic red algae for adults and seniors focused on bone and joint health. It is designed for anyone who wants a gentler alternative to limestone or chalk based calcium to support strength and mobility as they age.

Its standout trio combines Aquamin red algae calcium with vegan VegD3 from lichen and MenaQ7 K2 from chickpea fermentation. Together they support calcium absorption and help guide calcium to bones, and users report feeling less bone discomfort and better ease of movement with daily use.

The formula comes in small, easy to swallow veggie capsules that are free from fillers, additives and GMOs. Clean Icelandic sourcing plus third party testing gives added confidence in purity and quality for a daily wellness routine.

The main drawback is that the two capsule serving provides partial daily calcium and vitamin D, so diet still matters. Some users may also find the premium plant based approach more expensive than basic calcium tablets.

Overall, this is a strong pick for adults seeking a clean, absorbable and stomach friendly calcium with D3 and K2 in one. If you want plant based support for bones, joints and mobility, it is worth trying consistently.

Rep-Cal SRP00210 is a phosphorus-free calcium supplement designed for all reptiles and amphibians. It is ideal for owners of bearded dragons, geckos, chameleons, turtles and frogs that need daily calcium support. The bulk 7-pound size especially suits breeders, rescues and keepers with multiple animals.

The formula uses 100-percent natural oyster shell calcium carbonate with added vitamin D3 to support absorption and bone health. The ultrafine powder clings evenly to crickets, roaches and mealworms with a gentle shake for consistent dosing. It also blends smoothly into chopped vegetables, fruits and pastes when mixed as directed.

The ultrafine grind sets it apart from coarse calcium powders, giving better adhesion and less waste. It is formulated to be mixed 1 to 1 with Rep-Cal Herptivite to provide balanced calcium and vitamin coverage. When used correctly, no other supplementation is required, which simplifies the feeding routine.

The two-part system means you must buy Herptivite separately and mix it yourself, which adds a step. The fine powder can be dusty during shake dusting, so careful handling and a sealed bag work best. The large container is also more than a single reptile owner may need and requires dry storage space.

For keepers who want a proven, phosphorus-free calcium with D3, this is a reliable staple. It delivers strong nutritional support, easy application and excellent long term value in bulk form. If you maintain several reptiles or amphibians, it is a smart addition to your husbandry kit.

For live insects, thoroughly mix equal parts Rep-Cal calcium and Herptivite in a plastic bag, add insects and shake slowly until fully coated.

For salads and pastes, mix approximately 1/2 tablespoon of each supplement per pound of food and stir well before serving.

Use as directed for your species and store the powder sealed in a cool, dry place to maintain freshness.

Brand: Rep-Cal, Model Number: SRP00210, Form: Ultrafine Powder

Key Ingredients: Phosphorus-free calcium carbonate from natural oyster shell with vitamin D3

Unit Count: 7 Pounds, Intended Use: All reptiles and amphibians

Rep-Cal 52298 is a phosphorus-free calcium powder made for reptiles and amphibians that need plain calcium without vitamin D3. It suits keepers who use UVB lighting or dose D3 separately and want precise control over supplementation.

The standout feature is its pure calcium focus with no phosphorus and no D3. In daily use, the fine powder dusts feeder insects and greens evenly, which helps support bone strength and healthy shell growth with regular feeding.

The powder form is simple to dispense and store in its compact 3.3 oz jar. Build quality is straightforward and practical, with a fine, consistent texture that sticks well and a US manufactured formula geared for reptile care.

The main drawback is that it is incomplete on its own for animals without UVB or a D3 source. The small jar size also means frequent replacement for larger collections, and the mixed product description can create confusion.

Overall, this is a solid choice for experienced reptile and amphibian keepers who want a clean, controllable calcium supplement. If you already manage lighting and D3, it delivers simple, effective daily calcium support.

Brand: Rep-Cal, Model Number: 52298, Item Type: Reptile and Amphibian Calcium Supplement

Form: Powder, Item Weight: 3.3 ounces, Target Species: Reptile and Amphibian

Formula: Phosphorus-Free and Without Vitamin D3, Allergen Information: Nut Free

Dimensions: 2.7 x 2.7 x 2.3 inches, UPC: 788286002207, Made in United States