Home Feeds Ingredients Ascorbic Acid (Vitamin C Supplement) Esters of L-Ascorbic Acid (Vitamin C)

Esters of L-Ascorbic Acid (Vitamin C) - Feed Ingredient

Esters of L-ascorbic acid are chemically modified forms of vitamin C in which the ascorbic acid molecule is esterified with fatty acids, often to improve stability and lipid solubility. Common examples include ascorbyl palmitate and ascorbyl stearate.

In equine nutrition, these esters are used as antioxidant additives and alternative vitamin C sources. Compared to unmodified ascorbic acid, esterified forms are more stable during feed processing and storage, particularly in the presence of heat, light, or oxygen.

While horses can synthesize their own vitamin C, supplementation with stable forms like esters may be beneficial during periods of stress, illness, or aging.

The following equine feeds, supplements and products contain Esters of L-Ascorbic Acid (Vitamin C) as an ingredient.

Feed Name	Brand	ID	Availability	Format	Protein	Fat	ADF	NDF	NSC	DE	Lysine	Calcium	Phosphorus	Magnesium	Potassium	Sodium	Chloride	Iron	Zinc	Copper	Selenium	Biotin	Vitamin E
12% Select Horse	Sweet Country Feeds	430396		Textured	13.33%	4.44%	11.11%	17.78%	--	3.4 mcal/kg	--	0.83%	0.56%	--	--	--	--	--	138.89 ppm	61.11 ppm	0.33 ppm	--	--
Alfa Growth	Tribute Equine Nutrition	71330		Textured	13.3%	8.99%	13.3%	30%	22.22%	3.46 mcal/kg	9.2%	0.78%	1.69%	0.28%	0.9%	0.6%	0.8 ppm	393 ppm	225 ppm	84 ppm	0.67 ppm	2.47 ppm	741.57 KIU
DailyWerks HD	HorseTech	1034719	--	Powdered	10.1%	1%	3.8%	12%	7.3%	1.52 mcal/kg	17.9%	5.8%	3.8%	1.3%	--	--	--	--	2597.4 ppm	901.9 ppm	10.8 ppm	216.5 ppm	5411.3 KIU
DailyWerks LD	HorseTech	1034689	--	Powdered	12.1%	1%	3.8%	12%	7.3%	1.5 mcal/kg	14.9%	5.8%	3.8%	1.3%	--	--	--	--	2597.4 ppm	901.9 ppm	10.8 ppm	216.5 ppm	5411.3 KIU
Essential K	Tribute	71722		Pelleted	31.11%	6.67%	8.89%	16.67%	13.33%	3.43 mcal/kg	7.8%	2.78%	1.67%	0.44%	1.66%	0.7%	0.75 ppm	555.56 ppm	1000 ppm	333.33 ppm	1.67 ppm	5.9 ppm	2449.6 KIU
Essential K Rebuild	Tribute	1165146	--	Pelleted	31.11%	3.89%	8.89%	16.67%	13.89%	3.24 mcal/kg	8.93%	2.78%	1.67%	0.44%	1.67%	0.56%	0.83 ppm	555.56 ppm	1000 ppm	333.33 ppm	1.67 ppm	5.88 ppm	2449.58 KIU
Growth Pellet	Tribute	71803		Pelleted	17.8%	8.89%	22.22%	40%	16.66%	3.14 mcal/kg	6.87%	1.22%	0.83%	0.33%	1.22%	0.3%	0.5 ppm	166.67 ppm	250 ppm	88.89 ppm	0.67 ppm	4.15 ppm	733.33 KIU
Kalm N EZ Pellets (non-GMO)	Tribute	401294		Pelleted	15.56%	8.89%	21.11%	41.11%	15%	3.16 mcal/kg	6.43%	0.89%	0.67%	0.39%	1.11%	0.3%	0.5 ppm	138.89 ppm	220 ppm	72.22 ppm	0.67 ppm	1.72 ppm	612.39 KIU
Kalm N EZ Soy Free Pellet	Tribute	469595		Pelleted	15.4%	8.9%	21.1%	41.1%	15%	3.16 mcal/kg	6.43%	1.17%	0.66%	0.39%	1.1%	0.3%	0.5 ppm	194.4 ppm	222.2 ppm	72.2 ppm	0.66 ppm	1.69 ppm	612.39 KIU
Kalm N EZ Textured	Tribute	401293		Textured	15.56%	6.67%	23.33%	42.22%	17.22%	2.95 mcal/kg	6.43%	0.89%	0.67%	0.39%	1.1%	0.3%	0.5 ppm	138.89 ppm	222.22 ppm	72.22 ppm	0.67 ppm	1.59 ppm	612.39 KIU
Kalm N' Fit	Tribute Equine Nutrition	71337		Textured	15.6%	11.1%	13.3%	26.7%	26.17%	3.65 mcal/kg	6.43%	0.9%	0.67%	0.28%	1.01%	0.6%	0.8 ppm	140 ppm	225 ppm	67 ppm	0.67 ppm	9.9 ppm	617.98 KIU
Kalm Ultra	Tribute Equine Nutrition	71336		Pelleted	13.3%	13.3%	14.4%	31.1%	26.2%	3.74 mcal/kg	7.5%	1.17%	0.67%	0.33%	1.11%	0.6%	0.8 ppm	139 ppm	222 ppm	55.6 ppm	0.67 ppm	7.3 ppm	612.4 KIU
Performance Advantage	Tribute Equine Nutrition	71339		Textured	14.4%	8.99%	11.1%	21.1%	34.5%	3.62 mcal/kg	5.4%	0.94%	0.56%	0.28%	1.22%	0.3%	0.5 ppm	300 ppm	244.4 ppm	79 ppm	0.67 ppm	1.5 ppm	428.7 KIU
Resolve	Tribute	401295		--	15.56%	11.11%	24.44%	38.89%	19.44%	3.3 mcal/kg	6.43%	0.83%	0.67%	0.33%	1.11%	0.22%	0.33 ppm	166.67 ppm	233.33 ppm	88.89 ppm	0.67 ppm	4.41 ppm	734.87 KIU
Seniority GC Plus	Tribute Equine Nutrition	71333		Textured	15.6%	6.7%	21.1%	35.6%	24.4%	3.09 mcal/kg	6.4%	0.83%	0.44%	0.28%	1%	0.6%	0.8 ppm	111 ppm	166 ppm	66.7 ppm	0.67 ppm	1.8 ppm	489.9 KIU
Solutions 14 Low Starch Pellet	Right Choice	430296		Pelleted	15.56%	7.78%	21.1%	42.2%	21.11%	2.8 mcal/kg	5.71%	0.78%	0.67%	0.41%	1%	0.63%	--	192.5 ppm	250 ppm	66.67 ppm	0.67 ppm	--	244.96 KIU
Tough as Nails	Tribute	401404		Pelleted	22.22%	6.67%	13.8%	17.2%	--	3.43 mcal/kg	16.5%	0.83%	0.56%	0.44%	1.67%	0.44%	0.66 ppm	1111.11 ppm	1633.33 ppm	600 ppm	1.67 ppm	195.97 ppm	555.56 KIU
Tough To Beet®	Tribute Equine Nutrition	71342		Textured	13.9%	8.99%	11.1%	20%	32.2%	3.65 mcal/kg	5.6%	0.67%	0.56%	0.28%	1.22%	0.3%	0.5 ppm	333 ppm	167 ppm	78 ppm	0.56 ppm	1.71 ppm	342.9 KIU