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Supplements/Fatty Acid

Squalene

Olive oil/shark liver lipid antioxidant.

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Overview

Olive oil/shark liver lipid antioxidant.

Natural sources
  • Endogenously produced or biosynthesized molecule
  • Standardized pharmaceutical- or food-grade supplement
  • Combined with cofactors that improve absorption or activity
Common forms
  • Capsule or softgel
  • Powder
  • Sublingual or buccal
  • Liposomal liquid

Mechanism of action

Acts as singlet oxygen quencher; precursor to cholesterol.

Pathways
  • · Acts as singlet oxygen quencher
  • · precursor to cholesterol

Effects on the body

Supports
Skin moisturization

Organ system effects

Skin

Squalene supports collagen synthesis, antioxidant defense, or barrier function in skin and integumentary tissues.

Cardiovascular

Squalene supports endothelial function, lipid profile, or blood-pressure regulation in cardiovascular trials.

Evidence-based benefits

Skin moisturization

Moderate evidence

Potential side effects

Common
  • · Acne if comedogenic
Rare
    Serious

      Drug interactions

      Prescription medications (general)
      Always disclose Squalene use to your prescriber — additive, antagonistic, or pharmacokinetic interactions are possible.
      minor

      Supplement interactions

      Pairs well with
      • Collagen peptides
        Provides amino acid substrate for connective tissue synthesis.
      • Vitamin C
        Required cofactor for collagen hydroxylation.
      • Omega-3
        Anti-inflammatory cardiovascular synergy.
      Avoid combining with

      No specific avoidances listed.

      Dosing & bioavailability

      Typical dose
      500–1000 mg
      Best form
      Most evidence is based on the capsule or softgel form.
      Timing
      Consistent daily timing recommended; split larger doses if GI tolerance is a concern.
      With food?
      Either with or without food.

      Where to buy

      Affiliate links — we may earn a commission at no extra cost to you. Amazon code supplementsch-20 is auto-applied at checkout. We don't endorse specific brands; verify third-party testing (USP, NSF, Informed Sport) before purchase.

      Scientific evidence8Show studies
      Systematic reviewAdv Drug Deliv Rev · 2009

      Squalene cardiovascular review

      Reddy LH, Couvreur P

      Pharmacological review

      Key findings

      Cholesterol-lowering and antioxidant activity.

      Open study
      Systematic reviewPubMed (NLM) · 1970

      PubMed: Squalene — Skin moisturization

      Live PubMed search

      Live results for "Squalene Skin moisturization" across the PubMed/MEDLINE peer-reviewed index.

      Key findings

      Opens current human and preclinical literature matching Squalene and "Skin moisturization". Filter by RCT, meta-analysis, or year on the results page.

      Open study
      Systematic reviewPubMed (NLM) · 1970

      PubMed: Squalene — randomized controlled trial

      Live PubMed search

      Live results for "Squalene randomized controlled trial" across the PubMed/MEDLINE peer-reviewed index.

      Key findings

      Opens current human and preclinical literature matching Squalene and "randomized controlled trial". Filter by RCT, meta-analysis, or year on the results page.

      Open study
      Systematic reviewPubMed (NLM) · 1970

      PubMed: Squalene — meta-analysis

      Live PubMed search

      Live results for "Squalene meta-analysis" across the PubMed/MEDLINE peer-reviewed index.

      Key findings

      Opens current human and preclinical literature matching Squalene and "meta-analysis". Filter by RCT, meta-analysis, or year on the results page.

      Open study
      Systematic reviewPubMed (NLM) · 1970

      PubMed: Squalene — pharmacokinetics

      Live PubMed search

      Live results for "Squalene pharmacokinetics" across the PubMed/MEDLINE peer-reviewed index.

      Key findings

      Opens current human and preclinical literature matching Squalene and "pharmacokinetics". Filter by RCT, meta-analysis, or year on the results page.

      Open study
      Systematic reviewPubMed (NLM) · 1970

      PubMed: Squalene — safety adverse events

      Live PubMed search

      Live results for "Squalene safety adverse events" across the PubMed/MEDLINE peer-reviewed index.

      Key findings

      Opens current human and preclinical literature matching Squalene and "safety adverse events". Filter by RCT, meta-analysis, or year on the results page.

      Open study
      Systematic reviewPubMed (NLM) · 1970

      PubMed: Squalene — dose response

      Live PubMed search

      Live results for "Squalene dose response" across the PubMed/MEDLINE peer-reviewed index.

      Key findings

      Opens current human and preclinical literature matching Squalene and "dose response". Filter by RCT, meta-analysis, or year on the results page.

      Open study
      Systematic reviewGoogle Scholar · 1970

      Google Scholar: Squalene — clinical evidence

      Live Scholar search

      Cross-database citation index for Squalene as it relates to "clinical evidence".

      Key findings

      Includes preprints, theses, and journal articles. Useful for tracking citation counts and follow-on work.

      Open study
      Educational use only. This profile is not medical advice. Consult a qualified healthcare professional before starting any supplement, especially if you take prescription medication or have a chronic condition.

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