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Bayer Astraglow SP-8 Whitening Toothpaste bottle
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Bayer Astraglow SP-8 Whitening Toothpaste Review

Astraglow SP-8 is a probiotic whitening toothpaste formulated with hydroxyapatite to support oral health, prevent cavities, and provide fresh breath without using fluoride.

Product Focus: Teeth
Tier ⓘ
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Members see this product's tier and why. Tiers run from 1, the strongest evidence, to 5. How we grade →
Evidence ⓘ
Members
How strongly the evidence says this product works: human studies count most, then real reviews, then our biohacker panel.
Positive Reviews
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Biohacker Mentions
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Cost per month
$4
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Study, Trial or Testing Result SummaryMembersHuman studies

The label does give the amount of any ingredient, so it is known whether any of them match the strengths used in studies. Lactobacillus plantarum has the support. …

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Review Totals and SummaryMembers10 reviews
10 reviews · Amazon 4 · Aliexpress 3 · Ubuy 3

Astraglow SP-8 Whitening Toothpaste has gathered a collection of user feedback across platforms like Amazon, Aliexpress, and Ubuy, providing a fairly consensus on its performance. The bulk of reviewers express , with commenting that the toothpaste delivers noticeable whitening after regular use. …

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Biohacker SummaryMembersWhat our biohacker panel says

Lactobacillus, the main ingredient, gets a but cautious response from the panel. People take it for gut , for breaking down microplastics, for mood and calm through GABA, and for digestion, and rhamnosus is the strain the panel names often, with one citing colds and flu in school children. …

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RAL SummaryMembersThe tier and why

Emerging tier: human trials of Lactobacillus plantarum used in the mouth show some gum and plaque , but results are and amounts in this product are stated.

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More DetailsMembersBody systems · Combine with · Possible side effects

Body systems: Mouth and teeth. Combine with and possible side are for members.

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Supplement FactsWater 0 · Calcium Carbonate 0 · Sorbitol 0
Supplement Facts
Serving Size not on record
Servings Per Container Approx. 2-3 months of use per tube.
Amount Per Serving% Daily Value
Water0†
Calcium Carbonate0†
Sorbitol0†
Hydrated Silica0†
Sodium Lauryl Sulfate0
Polyethylene Glycol-80†
Glycerin0†
Flavor (Food Grade)0†
Cellulose Gum0†
Sodium Lauryl Sarcosinate0
Menthol0†
Hydroxypropyl Guar0†
Tetrasodium Pyrophosphate0†
CI 77891 (Titanium Dioxide)0†
Sodium Metabisulfite0
Menthyl Acetate0†
Sodium Benzoate0
Potassium Sorbate0†
Phenoxyethanol0†
Hydroxyacetophenone0†
Lactobacillus0†
Bifidobacterium Bifidum0†
Lactobacillus Salivarius0†
Lactobacillus Plantarum0†
Bifidobacterium Longum0†
Lactobacillus Casei0†
Bacillus Coagulans0†
Lactobacillus Rhamnosus0†
† Daily Value not established.

Directions: Usage: Apply toothpaste to your toothbrush and brush your teeth for 3 minutes, using an up-and-down motion from the inside out. For best results, brush twice daily, morning and night. After brushing, keep the toothpaste in your mouth for one minute before rinsing with water. Follow this routine for a month to see noticeable results.

Barcode (UPC) 06974608050832 · Label source: Ebay · Report a label change

Graded October 24, 2026 by the Reverse Age Lab evidence engine, from human studies, real reviews and our biohacker panel. How we grade. Is this medical advice? No. Rala organizes the published evidence; go over any change with your doctor, especially if you take meds.