Carotenoids for Cats

What feline studies show about colorful pigments, immune responses and their place in daily healthy-aging nutrition.

By La Petite Labs Editorial 16 min read

As Seen On

Woman nuzzling an orange cat beside a fluffy gray-and-white cat, a Pet Gala box and a food bowl
Contents

Carotenoids are pigments found in plants, algae and other organisms. Cats absorb several of them, and studies of astaxanthin and lutein have measured changes in immune responses. These findings help explain why carotenoids appear in nutritional formulas for cats. 1 2 4

For everyday healthy-aging nutrition, Hollywood Elixir® places astaxanthin within a full 17-active NAD+ formula. NR, CoQ10, glutathione and their vitamin and plant companions bring cellular-energy and antioxidant support together in one food-ready serving. 9

Cats absorb carotenoids, and studies of astaxanthin and lutein have measured immune responses. These findings differ from proving clearer vision, a shinier coat or treatment for disease. Preformed vitamin A remains a separate dietary requirement.

Hollywood Elixir includes astaxanthin within a full 17-active NAD+ formula. It brings precursor, cellular-energy and antioxidant nutrition together for a simple daily healthy-aging routine.

Meet the carotenoid family

Carotenoids are a large family of yellow, orange and red pigments. Familiar examples include beta-carotene, astaxanthin, lutein and zeaxanthin. They are related molecules, but their biological roles and research histories differ. 6

The useful questions are specific: which pigment reaches feline cells, what researchers measured after feeding it, and how that finding relates to a daily formula. Each ingredient’s name opens a different part of the research.

Woman smiling with a tabby cat on her shoulder while holding a Pet Gala box

What Carotenoids Are, and Why Cats Are a Special Case

Cats need preformed vitamin A in their diet: vitamin A already in a usable form, supplied by animal ingredients or an appropriate synthetic source. Beta-carotene does not meet that feline requirement. 7

But this is a different question from whether cats absorb carotenoids. They do. Research has detected dietary beta-carotene and astaxanthin in feline blood and white blood cells. 2 3 A cat can absorb a pigment without using it to replace the vitamin A its food must provide.

Woman kissing a fluffy gray cat while holding an orange tabby and a Pet Gala box

Beta-carotene reaches blood and white blood cells

In a 2000 study, researchers fed beta-carotene to young adult female cats and measured it after single doses and repeated feeding. It appeared in blood plasma and white blood cells, including cellular fractions containing mitochondria. Blood levels generally rose with the amount supplied. 3

This is direct evidence that a plant pigment enters feline tissues. It helps answer a basic question about cats as carnivores: their dietary specialization does not make carotenoid uptake impossible.

Woman petting a silver tabby on a kitchen counter beside an open Pet Gala box

Astaxanthin also enters feline cells

A 2010 experiment studied astaxanthin after a single dose and during 15 days of daily feeding. The cats were 12-month-old females, with eight in each dose group. Researchers detected astaxanthin in plasma, white blood cells and cellular fractions. 2

The preparation was given in water by syringe. This was an uptake experiment, not a trial of a finished daily formula or of changes in skin, coat or vision. Its positive finding is specific: cats can take up dietary astaxanthin.

Woman holding a fluffy white cat and a Pet Gala box

Astaxanthin and measured immune responses

A 12-week study in young female cats tested several daily amounts of astaxanthin. Researchers found greater immune-cell responses, natural-killer-cell activity and antibody measures under the study conditions. Some cell markers changed while others did not. 1

The result concerns immune responsiveness under those experimental conditions. It did not measure fewer infections or recovery from chronic illness, and the preparation was not Hollywood Elixir.

In a 12-week cat study, astaxanthin increased measured immune-cell responses and antibody levels.

What the 56-cat lutein study found

A separate 12-week experiment involved 56 young female cats receiving different amounts of lutein. Blood lutein increased, and the researchers reported changes in selected immune-cell responses and a stronger skin response to a vaccine challenge. The highest-dose group had higher IgG antibody measurements at weeks eight and twelve. 4

Not every test changed: the skin response to a different challenge did not improve, and several cell markers were unchanged. This was an immune-response study, not a test of infection prevention, eye health or coat appearance.

Two long-haired cats looking toward a Pet Gala box held above a food bowl

How researchers measure immune responses

An immune-cell test measures how cells respond to a stimulus. An antibody measurement asks a different question about the immune response. The lutein study used both types of assessment. 4

For an owner, that helps explain why an ingredient can attract interest beyond the category printed on a product’s front label. It also keeps the clinical question separate: treating FIV or inflammatory bowel disease requires evidence about that condition, not simply an immune-related ingredient.

Hand gently petting an orange-and-white cat beside a Pet Gala box and a food bowl

What about a cat’s eyes?

Lutein and zeaxanthin are familiar from human eye nutrition, but the feline evidence is much thinner. A 2026 review identifies gaps in what is known about these pigments’ deposition and clinical effects in cats. Human macular findings and dog studies cannot establish better feline vision. 6

Squinting, cloudiness, unequal pupils or new difficulty navigating deserve prompt veterinary attention. These are observations to act on, rather than reasons to try an eye supplement first. 8 Our guide to eye discharge in Persian cats addresses that more specific concern.

Man sitting with two long-haired cats on a sofa beside a Pet Gala box and a food bowl

Skin and coat deserve their own explanation

The cat studies above do not demonstrate a shinier coat, softer fur or less shedding. Research on carotenoid deposition and clinical skin effects in cats remains limited. 6 That leaves room for nutritional interest, but not a reliable cosmetic timetable.

For a practical skin-and-coat question, start with the relevant guide: what a healthy cat coat looks like, why a coat can look dull or grooming for coat health. These observations tell you more about what needs attention than the color of a supplement.

The Pet Gala material elsewhere on this page concerns a separate skin-and-coat formula. Pet Gala does not list astaxanthin, lutein or zeaxanthin. The carotenoid connection discussed here is Hollywood Elixir’s astaxanthin ingredient. 15

Read the preparation, not just the milligrams

Hollywood Elixir declares Astaxanthin 2% (natural) — 2 mg per full 2.5 g sachet. That is the amount of a 2% preparation, not 2 mg of pure astaxanthin. Its percentage is part of the ingredient’s identity. 9

Keep the preparation percentage and the amount together when reading a label. The feeding directions then tell you how much of the whole formula belongs in the daily serving; an isolated milligram number cannot do that job.

Cats can absorb carotenoids even though their food must supply vitamin A already formed.

Close-up of long white cat fur beside a veterinary vignette about visible skin and coat changes

DVM Voice: Clinical Vignette of When Skin Changes Point Deeper Than the Surface

Case provided by Sarah Calvin, DVM

Maverick, a 4-year-old Siamese cat, was brought in for hair loss across his lower abdomen and red, flaky skin lesions that had progressed over the previous month. His owners were unsure whether he was itchy or overgrooming.

Examination showed broken hairs, abdominal alopecia, and lesions consistent with bacterial skin infection. Further testing ruled out fleas, FeLV/FIV, and common fungal causes. Because his grooming pattern suggested deeper discomfort, his veterinarian continued the workup.

Radiographs and urinalysis revealed bladder stones, crystalluria, and blood in the urine. Maverick’s overgrooming was linked to urinary pain — a case where skin changes were secondary to an internal problem.

His care required a staged plan: stabilizing the skin infection, surgically removing the bladder stones, managing pain, transitioning to a therapeutic diet, and supporting skin-barrier recovery with appropriate nutrition and fish oil.

Hair regrowth began by 8 weeks. By 6 months, his coat had fully recovered, with no recurrence after the urinary issue was resolved.

Clinical takeaway: Maverick’s case shows why feline coat loss and overgrooming deserve careful veterinary investigation. Skin and coat health can reflect pain, stress, nutrition, infection, barrier weakness, or internal disease — not just surface-level grooming behavior.

Single-case vignette. Not generalizable. Veterinary diagnosis and oversight are essential for overgrooming, hair loss, skin lesions, urinary signs, pain, or suspected infection.

Explore Pet Gala Research →
Long-haired tabby being combed beside a Pet Gala box and a food bowl

Different pigments need their own safety evidence

An older cat experiment examined canthaxanthin, a different carotenoid, during daily exposure for up to six months. Researchers observed microscopic changes in the retinal pigment epithelium, although early electrical retinal tests did not change significantly. 5

That result belongs to the pigment and exposure tested. It does not show that every carotenoid damages the retina. Safety needs the same specificity as benefits: the compound, preparation and conditions all matter.

Orange-and-white cat eating from a bowl beside a Pet Gala box

Why put astaxanthin in a full healthy-aging formula?

A cat’s cells use energy from food while maintaining tissues and antioxidant defenses. Hollywood Elixir brings nutrition for these related daily jobs together in a full 17-active NAD+ system.

NR provides starting material for NAD+, while CoQ10 participates in mitochondrial reactions that help cells use food energy. Vitamin B2 supplies the FMN and FAD cofactors used in metabolism. Glutathione belongs to the cell’s antioxidant machinery, alongside the formula’s selected antioxidant vitamin and plant ingredients. 10 11 12 13 9

These normal roles explain the formulation; they do not establish a measured clinical result from the finished product. The practical reason to choose Hollywood Elixir is its broader purpose: daily NAD+ nutrition, cellular-energy support and antioxidant care, prepared together for healthy aging.

See how cells make, use and recycle NAD+ in our NADome and NADomics guide.

Brown-and-white tabby licking its nose beside a Pet Gala box and a food bowl

Hollywood Elixir’s full 17-active formula

These are the declared ingredient preparations per full 2.5 g sachet. The percentages and forms are part of the amounts below. 9

  • Nicotinamide Riboside Tartrate — 60 mg
  • Coenzyme Q10 98% (Ubidecarenone) — 40 mg
  • L-Glutathione Reduced — 50 mg
  • Vitamin B2 (as Riboflavin) USP — 0.5 mg
  • Vitamin B3 (as Niacin) — 2 mg
  • Vitamin B6 (as Pyridoxal 5-Phosphate) — 1 mg
  • Vitamin B12 (as Methylcobalamin Trit 1% on DCP) — 0.25 mg
  • Vitamin E D-alpha Tocopheryl Acid Succinate 1210 — 15 IU
  • Vitamin C (as Ascorbic Acid) — 10 mg
  • Astaxanthin 2% (natural) — 2 mg
  • Resveratrol Extract (Std. 98% from Polygonum Cuspidatum) — 15 mg
  • Quercetin Dihydrate 95% — 25 mg
  • Beta Glucan (Beta-1,3/1,6-D-Glucan Powder) from Saccharomyces cerevisiae — 50 mg
  • Reishi Mushroom Powder P.E. (Std. 35% Polysaccharides) — 25 mg
  • Organic Spirulina Powder — 50 mg
  • Blueberry Fruit Powder — 50 mg
  • Whey Protein Isolate 90% (WPI) — 250 mg

Additional ingredients are Chicken Flavor, Chicken Liver Powder, Yeast Extract, Glycine and Hydroxypropyl Beta-Cyclodextrin. The B12 amount is a 1% trituration on DCP; the blueberry amount is fruit powder. Neither should be read as the same mass of pure vitamin B12 or polyphenols. 9

Make the full formula part of a meal

Hollywood Elixir mixes into food. The current adult directions are half a sachet below 7 lb, one sachet at 7–30 lb and two sachets above 30 lb daily. Each full sachet is 2.5 g, and the ingredient list above describes that full sachet. 9

A prepared formula makes the routine straightforward: the precursor, cellular-energy and antioxidant ingredients arrive together, rather than as separate additions to assemble. The full Hollywood Elixir ingredient guide keeps the forms and amounts available alongside that choice.

Complete food remains the foundation

Choose a main food with a complete-and-balanced statement for your cat’s life stage. That statement concerns a diet intended to meet nutritional needs; a supplement serves a different purpose. 14 Preformed vitamin A belongs in that dietary foundation. 7

Hollywood Elixir is an optional healthy-aging addition for adult and senior pets, not a replacement for complete food. 9 Keep portions and body condition in the wider routine too; our weight-management guide for cats addresses that separate part of daily nutrition.

Long-haired tabby beside a Pet Gala box held by a person wearing blue scrubs and a stethoscope

Match the choice to the individual cat

If your cat takes medicines, follows a prescribed diet or has a diagnosed condition, bring the exact supplement label to your veterinarian. Include the intended amount and every other supplement. “Carotenoids” is a family name, so it is too broad to establish a universal interaction list or a suitable dose.

A human capsule is not a ready-made cat serving. Its preparation and other ingredients still need consideration. The young-cat studies also do not establish a universal plan for kittens, pregnant cats or every senior with medical needs. Choose for the individual, then keep the daily routine simple.

Couple cuddling a silver tabby cat

Keep useful notes about changes

If a change prompted the search, record what you actually notice and when it began. Excessive shedding, skin allergies and dry-looking skin are different questions. Photos taken in similar light and a short note about timing can make that conversation easier.

Our guides to cat skin-care supplements and skin-and-coat formulas help keep the choice connected to the concern. A new or worsening sign should be assessed on its own, rather than used as a test of a healthy-aging supplement.

Choose the whole daily purpose

Choose a daily addition for the nutritional purpose you want it to serve.

For daily healthy-aging nutrition, Hollywood Elixir combines its astaxanthin preparation with 16 other actives, bringing NAD+ precursor nutrition, cellular-energy support and antioxidant ingredients into one meal-ready formula. 9 It is a practical choice when you want these related nutritional roles covered together as your cat ages.

Explore Hollywood Elixir® and make the full formula part of your cat’s daily meal.

Hollywood Elixir brings 17 actives into one daily meal for healthy-aging nutrition, cellular energy and antioxidant support.

Educational content only. This material is not a substitute for veterinary advice. Always consult your veterinarian about your cat’s specific needs. These statements have not been evaluated by the Food and Drug Administration. Products mentioned are not intended to diagnose, treat, cure, or prevent any disease.

Glossary

Carotenoid: a member of a family of yellow, orange and red pigments.

Preformed vitamin A: vitamin A already in a form that meets the cat’s dietary requirement.

Plasma: the liquid part of blood.

Leukocyte: a white blood cell.

Antibody: a protein made by the immune system that recognizes a particular target.

Preparation: an ingredient material that may contain a stated proportion of the named compound.

NAD+ precursor: material used to make NAD+; NR is one such precursor.

Mitochondria: cell structures central to turning nutrient-derived energy into ATP.

Related Reading

Common Feline Integumentary Issues
• Cat Dandruff
• Why Is My Cat Shedding So Much
• Cat Hair Loss

Comfort & Recovery
• Skin & Coat Supplements for Cats
• Cat Nail Supplement
• Best Supplements for Cat Shedding

Ingredient-Level Articles
• Biotin for Cats
• Silica for Cats
• Hyaluronic Acid for Cats
• Ceramides for Cats

References

Numbered references identify the sources used for specific claims. Read the study design, species and evidence boundaries alongside each finding.

  1. Park JS, Mathison BD, Hayek MG, Massimino S, Reinhart GA, Chew BP. Astaxanthin stimulates cell-mediated and humoral immune responses in cats. 2011· DOI 10.1016/j.vetimm.2011.08.019Evidence boundary: Twelve-week astaxanthin study measuring immune-cell and antibody responses in young female cats.↩ 1 · ↩ 2 · ↩ 3
  2. Park JS, Kim HW, Mathison BD, Hayek MG, Massimino S, Reinhart GA, Chew BP. Astaxanthin uptake in domestic dogs and cats. 2010· DOI 10.1186/1743-7075-7-52Evidence boundary: Feline and canine uptake experiments; cat methods and results distinguish absorption from clinical outcomes.↩ 1 · ↩ 2 · ↩ 3 · ↩ 4
  3. Chew BP, Park JS, Weng BC, Wong TS, Hayek MG, Reinhart GA. Dietary beta-carotene absorption by blood plasma and leukocytes in domestic cats. 2000· DOI 10.1093/jn/130.9.2322Evidence boundary: Dietary beta-carotene uptake into feline blood plasma and white blood cells.↩ 1 · ↩ 2 · ↩ 3
  4. Kim HW, Chew BP, Wong TS, Park JS, Weng BB, Byrne KM, Hayek MG, Reinhart GA. Modulation of humoral and cell-mediated immune responses by dietary lutein in cats. 2000· DOI 10.1016/s0165-2427(00)00152-5Evidence boundary: Twelve-week lutein experiment in 56 young female cats, measuring selected immune responses.↩ 1 · ↩ 2 · ↩ 3 · ↩ 4
  5. Scallon LJ, Burke JM, Mieler WF, Kies JC, Aaberg TM. Canthaxanthine-induced retinal pigment epithelial changes in the cat. 1988· DOI 10.3109/02713688809033198Evidence boundary: Specific canthaxanthin exposure and retinal-cell observations in cats.↩
  6. Nicole T Stringham. Nutritional Benefits of Dietary Lutein, Zeaxanthin, and Meso-Zeaxanthin in Canine, Feline, and Equine Companion Animals: A Narrative Review. 2026· DOI 10.31083/IJVNR50575Evidence boundary: Narrative review of companion-animal xanthophyll research, including feline evidence gaps; industry funding and consultancy disclosed.↩ 1 · ↩ 2 · ↩ 3 · ↩ 4
  7. Sherry Lynn Sanderson. Nutritional Requirements of Small Animals. 2024Evidence boundary: Veterinary nutrition guidance on the feline requirement for preformed vitamin A.↩ 1 · ↩ 2 · ↩ 3 · ↩ 4
  8. Cornell Feline Health Center. Feline Vision Problems: A Host of Possible Causes. n.d.Evidence boundary: Veterinary guidance on recognizing eye changes and seeking early assessment.↩
  9. La Petite Labs. Hollywood Elixir® ingredients and daily serving. 2026Evidence boundary: Manufacturer’s complete 17-active declaration, exact preparations and adult feeding directions.↩ 1 · ↩ 2 · ↩ 3 · ↩ 4 · ↩ 5 · ↩ 6 · ↩ 7 · ↩ 8 · ↩ 9 · ↩ 10 · ↩ 11
  10. Fletcher RS et al. Nicotinamide riboside kinases display redundancy in mediating nicotinamide mononucleotide and nicotinamide riboside metabolism in skeletal muscle cells. 2017· DOI 10.1016/j.molmet.2017.05.011Evidence boundary: Mouse and muscle-cell research explaining NR metabolism and NAD+ precursor pathways.↩
  11. Reactome. Complex I oxidises NADH to NAD+, reduces CoQ to CoQH2. n.d.Evidence boundary: Normal mitochondrial electron transfer from NADH through complex I to CoQ.↩
  12. Reactome. glutathione (oxidized) + NADPH + H+ => 2 glutathione (reduced) + NADP+. n.d.Evidence boundary: Normal glutathione recycling reaction using NADPH.↩
  13. Reactome. Vitamin B2 (riboflavin) metabolism. n.d.Evidence boundary: Riboflavin’s role as a source of FMN and FAD cofactors.↩
  14. U.S. Food and Drug Administration. “Complete and Balanced” Pet Food. n.d.Evidence boundary: FDA guidance on complete-and-balanced pet food and life-stage statements.↩
  15. La Petite Labs. Pet Gala ingredient guide and declared supplement facts. 2026Evidence boundary: Manufacturer’s separate Pet Gala ingredient declaration, used to distinguish it from the carotenoid-containing Hollywood Elixir formula.↩

FAQ

What are carotenoids for cats, in simple everyday terms?

They are pigments such as astaxanthin, lutein, zeaxanthin and beta-carotene. Cats absorb several carotenoids, but uptake is different from meeting their vitamin A requirement. Their main food must supply preformed vitamin A. 2 3 7

Why do cat owners care about carotenoids benefits for cats?

Specific astaxanthin and lutein experiments measured changes in feline immune responses. Those findings support nutritional interest, while eye, coat and disease-treatment claims need their own evidence. 1 4

What is the safest approach to carotenoids dosage for cats?

Use the directions for the exact cat-appropriate product and review suitability for your cat. Do not turn a research dose into a home prescription. A percentage matters: Hollywood Elixir’s 2 mg of 2% astaxanthin preparation is not 2 mg of pure astaxanthin. Its adult serving directions apply to the whole formula. 9

Are carotenoids for cats safe for kittens or seniors?

There is no single safety answer for every pigment, preparation and life stage. The studies described here do not establish a universal kitten or senior dose. Hollywood Elixir is positioned for adult and senior pets; a kitten or a cat with medical needs requires an individual choice. 9

Do carotenoids interact with medications my cat takes?

The family name alone cannot establish interactions. Give your veterinarian the exact formula, preparation, intended amount and full medicine and supplement list. Review a new addition in the context of the condition being treated, and do not independently stop prescribed medicines.

How soon might I notice results from carotenoids for cats?

There is no established timetable for visible eye or coat improvement from carotenoids in cats. The feline clinical evidence remains limited. 6 Assess a new or worsening sign separately, rather than waiting for a cosmetic effect from daily healthy-aging nutrition.

Are natural carotenoids for cats better than synthetic sources?

“Natural” alone does not establish a better result. Look at the exact compound, preparation and evidence. Vitamin A is a separate issue: cats can receive suitable preformed vitamin A from animal or synthetic sources, so synthetic does not automatically mean unusable. 7

What should I look for in the best carotenoids supplement for cats?

Look for a named pigment and preparation, an amount per serving, intended species and clear feeding directions. Then choose the purpose you want. Hollywood Elixir offers astaxanthin within a full 17-active NAD+ formula for daily healthy-aging nutrition, bringing cellular-energy and antioxidant support together in a meal-ready serving. 9

Orange tabby cat stretching on a green rug in the feline integumentary-system framework section

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When these systems drift, the signs are subtle but telling: reduced coat softness, increased shedding, dryness, brittle claws, changes in grooming behavior.

This article explores one piece of that system. If you want to understand how true coat quality and skin resilience are built in cats—and what actually drives visible improvement—you need to zoom out.

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