Top 10 Best calcium hydroxide in 2026

Last Updated - 6/6/2026

🏆Best Choice

NOW Foods

NOW Foods Supplements, Calcium Hydroxyapatite Caps, Supports Bone Health*, 120 Capsules

9.8

ChoiceComparer.com Score

9.8

/ 10

Outstanding

Main highlights

•Calcium Hydroxyapatite provides a bioavailable source of dietary calcium together with other nutrients that assist in the maintenance of healthy bone structure and function*
•Calcium Hydroxyapatite is derived from Australian, certified BSE-free, young pasture-fed cattle
•It is a highly absorbable source of Microcrystalline Hydroxyapatite (MCH), which includes calcium, phosphorus, magnesium, protein, minerals and amino acids normally found in bone tissue
•Take 2 capsules twice daily with food
•Packaged in the USA by a family owned and operated company since 1968

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$11.39

$18.99

-40%

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LimeFav

LimeFav Food Grade Calcium Hydroxide of 96%+ Purity, CAS NO.: 1305-62-0(500g/17.6oz)

9.7

ChoiceComparer.com Score

9.7

/ 10

Outstanding

Main highlights

•Product Name: Calcium Hydroxide, CAS NO.: 1305-62-0
•Molecular formula: Ca(OH)2, Commonly known as hydrated lime, slaked lime.
•Appearance: White powdery solid, with alkaline and slightly bitter taste, can absorb CO2 from the air and transform into calcium carbonate. When heated above 100°C, it loses water to form calcium oxide, and its aqueous solution forms a calcium carbonate film. Insoluble in water. It is strongly alkaline, with a pH value of 12.4. It has alkaline properties. Soluble in glycerin, hydrochloric acid and nitric acid, and a saturated solution of sucrose, insoluble in ethanol.
•Food grade calcium hydroxide is often used as an acidity regulator (PH regulator), moderator, neutralizer, and curing agent; it can be used as a coagulant for making konjac food.
•Calcium hydroxide is widely used in the industrial field. It is a commonly used building material and can also be used in rubber and petrochemical additives. For example, it can be added to lubricating oil in the petroleum industry to prevent coking and sludge deposition. Calcium hydroxide is alkaline and can be used to reduce the acidity of the soil, thereby improving the soil structure.

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$17.99

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Modernist Pantry

Pure Calcium Hydroxide [Slaked Lime] ⊘ Non-GMO ❤ Gluten-Free ☮ Vegan - 50g/2oz

9.5

ChoiceComparer.com Score

9.5

/ 10

Outstanding

Main highlights

•Also known as Slaked Lime or Pickling Lime
•Used in the pickling process of cucumbers and other foods
•Helps bind the corn flour in corn tortillas to improve texture and taste
•Used as a pH adjuster in home brewing
•Can be used to "petrify" or "fossilize" fruits and vegetables containing Pectin

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$7.99

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PURE ORIGINAL INGREDIENTS

Pure Original Ingredients Calcium Carbonate (1 lb) Dietary Supplement, Food Preservative, Acid Neutralizer

9.4

ChoiceComparer.com Score

9.4

/ 10

Excellent

Main highlights

•Pure Original Ingredients Calcium Carbonate Powder is made from a single ingredient, providing a pure undiluted supplement

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$12.99

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EASTCHEM

Calcium Hydroxide (Slaked Lime), 95%+ Purity (500g/17.6 oz)

9.2

ChoiceComparer.com Score

9.2

/ 10

Excellent

Main highlights

•Calcium Hydroxide Powder: Commonly known as slaked lime or hydrated lime.
•Appearance: White powdery solid with an alkaline taste and slightly bitter flavor. CAS Number: 1305-62-0, MF: Ca(OH)₂, Molecular Weight: 74.096, pH: 12.4.
•Solubility: Slightly soluble in water; soluble in glycerol, hydrochloric acid, nitric acid, and saturated sucrose solutions; insoluble in ethanol.
•calcium hydroxide is commonly used as an acidity regulator (pH adjuster), stabilizer, neutralizer, and curing agent. It serves as a coagulant in the production of konjac-based foods.
•Calcium hydroxide can adjust the pH of water, improve water quality, and promote the growth and development of fish.

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$16.99

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Herbs Botanica

Herbs Botanica Calcium Hydroxide Powder 8 oz Fine Food Grade Lime Powder for Culinary, Pickling, Limewater, Nixtamalization & DIY Applications Slaked Lime (Cal)

9.1

ChoiceComparer.com Score

9.1

/ 10

Excellent

Main highlights

•Pure Calcium Hydroxide Powder – 8 oz – Finely milled food grade calcium hydroxide also known as slaked lime or cal, packaged for safe storage and use.
•Common in Culinary & Traditional Use – Often used in nixtamalization, pickling, and making limewater for culinary or cultural recipes.
•Smooth, Easy-to-Blend Texture – This fine white powder mixes easily with water or other base ingredients, making it ideal for precise DIY use.
•Multi-Use Ingredient – Suitable for various applications such as food prep, traditional recipes, and educational or lab settings.
•Resealable Pouch for Freshness – Comes in a moisture-resistant, resealable 8 oz pouch to ensure long-lasting shelf life and reduce clumping.

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$9.64

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Modernist Pantry

Pure Calcium Hydroxide [Slaked Lime] ⊘ Non-GMO Gluten-Free Vegan - 400g/14oz

8.9

ChoiceComparer.com Score

8.9

/ 10

Great

Main highlights

•Also known as Slaked Lime or Pickling Lime
•Used in the pickling process of cucumbers and other foods
•Helps bind the corn flour in corn tortillas to improve texture and taste
•Used as a pH adjuster in home brewing
•Can be used to "petrify" or "fossilize" fruits and vegetables containing Pectin

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$19.99

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ESV Aquatics

E.S.V. Calcium Hydroxide 4 lb 16oz

8.8

ChoiceComparer.com Score

8.8

/ 10

Great

Main highlights

•Calcium Hydroxide

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$38.73

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T-MILES

T-MILES Food Grade Calcium Hydroxide 500g/17.6oz

8.6

ChoiceComparer.com Score

8.6

/ 10

Good

Main highlights

•Packaging: 500g.
•Calcium Hydroxide podwer: Commonly known as hydrated lime, slaked lime.
•Used as a pH adjuster in home brewing.
•Appearance: white powdery solid with alkali taste and slightly bitter taste.
•Application: Used in the pickling process of cucumbers and other foods, helps bind the corn flour in corn tortillas to improve texture and taste.

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$16.99

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mGanna

100% Natural Calcium Hydroxide Powder for Food & Cosmetics 454 g / 1 lbs

8.5

ChoiceComparer.com Score

8.5

/ 10

Good

Main highlights

•Calcium hydroxide powder is used in creams, facial cleansers, styling gels, and other comestic products
•It is also used in bath products, foot powders, hair dyes, depilatories and other cosmetic formulations
•It is used to stabilize the pH of cosmetic products
•mGanna Calcium Hydroxide powder is 100% natural. It is free from any chemicals or any preservatives.
•Calcium Hydroxide Powder comes in resealable stand-up pouches to keep it fresh for longer

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$15.99

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