Formula · 8.5

Brand · 9.0

Doctor’s Best · types I & III (bovine) · US

Doctor’s Best Collagen Types 1 & 3 1000 mg

Doctor’s Best Collagen Types 1 & 3 1000 mg
8.5

LabReadAI label score

How the score is calculated
  • Effect and evidence0.8Actives with strong evidence: 1 of 2
  • Absorbed dose vs reference intake0.7On average 30 % of the intake across 1 nutrients per serving
  • Completeness for the purpose1.0For “collagen: skin and joints” — 100 %; a formula with one main purpose
  • Safety and purity1.0No excess doses or debatable ingredients; excipients: 5
  • adults
  • vegetariansplant-based capsule
  • pregnancyask a doctor
  • fish or beef allergycheck the collagen source
  • childrenage-based dose, with a doctor
  • kidney stonesask a doctor
  • haemochromatosisincreases iron absorption
Free from:
  • artificial sweeteners · by the listthe list has no ingredient of the “acesulfame potassium, aspartame, sucralose” group — a calorie-free sweetener, usually paired with sucralose or aspartame for taste. Permitted, a preference question.
  • colorants E102/E120/E150 · by the listthe list has no ingredient of the “caramel colour, carmine, tartrazine” group — a brown colour from caramelised sugar: it tints syrups and coatings and does not affect the action.
  • carrageenan · by the listthe list has no ingredient of the “carrageenan” group — a thickener from red seaweed. It is permitted but debated: in animal studies the degraded form irritated the gut, so people with inflammatory bowel disease are sometimes advised to avoid it. For food-grade carrageenan there is no such proof.
  • gelatin · by the listthe list has no ingredient of the “gelatin (capsule)” group — capsule shell of animal gelatin (usually bovine or fish) — not for vegetarians; for halal/kosher the source must be confirmed with the maker
  • soy lecithin · by the listthe list has no ingredient of the “soy lecithin” group — an emulsifier from soy: it binds fats with water and keeps a capsule from separating. With a soy allergy it is a reason to check the list.
  • titanium dioxide (E171) · by the listthe list has no ingredient of the “titanium dioxide (E171)” group — white coating pigment; banned as a food additive in the EU since 2022, permitted in Russia and the US
  • gelatin in the coating · by the listthe list has no ingredient of the “vegetarian coating” group — a plant-based tablet coating instead of gelatin; it keeps moisture out and makes swallowing easier
What for: Collagen hydrolysate over an 8-week course makes skin firmer and better hydrated and helps joints under load and with age.
When:
  • morning
  • evening
any time; better with vitamin C
When to expect an effect: skin — 8–12 weeks; joints — 3–6 months; deficiency — 1–2 weeks; no quick immunity effect
What is normal: taste, a heavy feeling; looser stools at 1 g and above

Ingredients — 7 components · 2 work

What works: 2 of 7 ingredients: collagen, vitamin c. Collagen hydrolysate over an 8-week course makes skin firmer and better hydrated and helps joints under load and with age.

Strengths: completeness for the purpose, safety and purity

What lowers the score: effect and evidence: actives with strong evidence: 1 of 2; absorbed dose vs reference intake: on average 30 % of the intake across 1 nutrients per serving

Questions: no debatable ingredients in the formula

  • Collagen + Vitamin C — reinforce each othervitamin C is a cofactor of the body's own collagen synthesis
  • Supplement Facts label wording · the heading of the label’s facts table — the per-serving numbers follow
  • Serving Size 3 Tablets label wording · serving size: how many tablets or capsules count as one serving; all numbers below are per serving
  • Collagen Types 1 & 3 (bovine) 3,000 mg works · the active ingredient — what the product is for; form: types I & III (bovine)
  • Vitamin C (as calcium ascorbate) 30 mg works · the active ingredient — what the product is for; form: calcium ascorbate
  • Calcium 4.2 mg label wording · a nutrition-facts line — the amount per serving, not a separate ingredient
  • Sodium 17.1 mg label wording · a nutrition-facts line — the amount per serving, not a separate ingredient
  • Other Ingredients: microcrystalline cellulose base: coating, fillers · filler that gives the tablet its bulk
  • stearic acid base: coating, fillers · in tablets — a pressing lubricant, in creams — a thickener and soap component; rarely clogs pores in leave-on face products
  • croscarmellose sodium base: coating, fillers · disintegrant — helps the tablet break up in the stomach
  • magnesium stearate base: coating, fillers · tablet-pressing lubricant; contains negligible magnesium, not counted as the element; in powders — a slip agent; does not clog pores
  • hypromellose base: coating, fillers · plant-based capsule or tablet coating

Doctor’s Best Collagen Types 1 & 3 1000 mg is collagen + vitamin c as types I & III (bovine): 3 g per serving of 3 tablets. Per serving: collagen — 3 g, vitamin c — 30 mg (30 %) of the daily intake. Well-absorbed forms — 1 of 2. The formula has 7 ingredients, 2 of which do the work; the rest is coating and fillers. Well-matched pairs in the formula: collagen + vitamin c. Collagen hydrolysate over an 8-week course makes skin firmer and better hydrated and helps joints under load and with age. By the list, no artificial sweeteners, colorants E102/E120/E150, carrageenan, gelatin, soy lecithin, titanium dioxide (E171), gelatin in the coating. Suitable for: adults, vegetarians. pregnancy, fish or beef allergy, children, kidney stones, haemochromatosis — ask a doctor. Use: any time; better with vitamin C. When to expect an effect: skin — 8–12 weeks; joints — 3–6 months. Label score — 8.5 out of 10 (actives with strong evidence: 1 of 2; on average 30 % of the intake across 1 nutrients per serving).

Who it does not suit

When to stop: allergic reaction to the source; diarrhoea, heartburn — lower the dose

Is this supplement right for you?

The score describes the product, not you: whether you need this magnesium, iron or vitamin D is decided by your blood tests. Tell us about yourself, upload your CBC and blood chemistry, answer a few questions — we will go through every ingredient by its chemistry and biology and say whether the product suits you and at what dose.

Supplement matchDecode my tests

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